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2016
Volume: 14 Issue 2
20 Article(s)
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Instrumentation, Measurement, and Metrology
Simultaneous measurement of vibration amplitude and rotation angle based on a single-channel laser self-mixing interferometer
Wu Sun, Jianguo Liu, Huaqiao Gui, Anli Lu... and Yihuai Lu|Show fewer author(s)
Based on a single-channel laser self-mixing interferometer, we present a new simultaneous measurement of the vibration amplitude and the rotation angle of objects that both affect the power spectrum containing two peaks of the interferometer signals. The fitted results indicate that the curve of the peak frequency versBased on a single-channel laser self-mixing interferometer, we present a new simultaneous measurement of the vibration amplitude and the rotation angle of objects that both affect the power spectrum containing two peaks of the interferometer signals. The fitted results indicate that the curve of the peak frequency versus the vibration amplitude follows a linear distribution, and the curve of the difference of the two-peak power values versus the angle follows a Gaussian distribution. A vibration amplitude with an error less than 3.0% and a rotation angle with an error less than 11.7% are calculated from the fitted results..
Chinese Optics Letters
- Publication Date: Feb. 10, 2016
- Vol. 14, Issue 2, 021201 (2016)
Lasers and Laser Optics
Polarization switching characteristics in a 1550 nm VCSEL subject to circularly polarized optical injection
Haiying Qiu, Zhengmao Wu, Tao Deng, Yang He, and Guangqiong Xia
Polarization switching (PS) characteristics in a 1550 nm vertical-cavity surface-emitting laser (VCSEL) subject to circularly polarized optical injection (CPOI) are experimentally investigated. The results show that, under different biased current, a solitary 1550 nm VCSEL can oscillate at y polarization mode (y mode),Polarization switching (PS) characteristics in a 1550 nm vertical-cavity surface-emitting laser (VCSEL) subject to circularly polarized optical injection (CPOI) are experimentally investigated. The results show that, under different biased current, a solitary 1550 nm VCSEL can oscillate at y y x x y x
Chinese Optics Letters
- Publication Date: Feb. 10, 2016
- Vol. 14, Issue 2, 021401 (2016)
Ringing phenomenon in a high-Q fiber bottle microresonator
Meixia Shen, Mingyong Ye, Qin Lin, Rongcan Yang, and Xiumin Lin
It is demonstrated that high-Q (Q～108) bottle microresonators can be fabricated by using a CO2 laser to heat a vertical single-mode fiber with a small weight attached to its lower end. A tunable continuous-wave laser is used to excite whispering-gallery modes in a bottle microresonator through a fiber taper, and a ringIt is demonstrated that high-Q Q ～ 10 8 CO 2
Chinese Optics Letters
- Publication Date: Feb. 10, 2016
- Vol. 14, Issue 2, 021402 (2016)
Laser diode array side-pumped medium-aperture Nd:glass square rod amplifier
Xiongxin Tang, Jisi Qiu, Zhongwei Fan, Haocheng Wang, and Weiran Lin
A laser diode array side-pumped Nd:glass square rod amplifier of the dimensions 12 mm×12 mm is designed. The fluorescence is evenly distributed in the Nd:glass amplifier. When the pump power is 66.32 kW, the small signal gain increases by 3.23 times. Under the condition of a 1 Hz repetition frequency, 50 mJ of injA laser diode array side-pumped Nd:glass square rod amplifier of the dimensions 12 mm × 12 mm 10 mm × 10 mm
Chinese Optics Letters
- Publication Date: Feb. 10, 2016
- Vol. 14, Issue 2, 021403 (2016)
Multiwavelength visible laser based on the stimulated Raman scattering effect and beta barium borate angle tuning
Xiaoli Li
We demonstrate wavelength-selectable visible emissions from a miniature crystalline laser that combines the stimulated Raman scattering (SRS) effect in an Nd:YVO4 crystal with intracavity frequency mixing in an angle-tuned beta barium borate (BBO) crystal. The presented laser is operating on demand at any one of three We demonstrate wavelength-selectable visible emissions from a miniature crystalline laser that combines the stimulated Raman scattering (SRS) effect in an Nd : YVO 4
Chinese Optics Letters
- Publication Date: Feb. 10, 2016
- Vol. 14, Issue 2, 021404 (2016)
Highly efficient Nd:(Lax Gd1−x )3Gd5O12 laser operation at 1.33 μm
Zhitai Jia, Yanru Yin, He Yang, Baitao Zhang... and Xutang Tao|Show fewer author(s)
The continuous wave (CW) and passively Q-switched (PQS) performances of diode-pumped Nd:(LaxGd1 x)3Gd5O12 (Nd:LaGGG) at 1.33 μm are achieved for the first time to our knowledge. The maximum CW output power of 5.1 W is obtained with the optical-optical conversion efficiency of 25.3% and the slope efficiency of 26.6%. InThe continuous wave (CW) and passively Q Nd : ( La x Gd 1 x ) 3 Gd 5 O 12 V 3 + : YAG
Chinese Optics Letters
- Publication Date: Feb. 10, 2016
- Vol. 14, Issue 2, 021405 (2016)
Anisotropy of laser emission in monoclinic Nd:ScYSiO5 crystals cut along the optical indicatrix axes
Shande Liu, Lihe Zheng, Jun Xu, Yuping Zhang... and Jingliang He|Show fewer author(s)
In this Letter, we demonstrate the anisotropy of laser emission in disordered Nd:ScYSiO5 (Nd:SYSO) crystals cut along the optical indicatrix axes. High-powered lasers with different oscillation wavelengths and polarizations are realized by using different oriented crystals as gain media. For Y-cut crystals, the dual-waIn this Letter, we demonstrate the anisotropy of laser emission in disordered Nd : ScYSiO 5 Y X X Z
Chinese Optics Letters
- Publication Date: Feb. 10, 2016
- Vol. 14, Issue 2, 021406 (2016)
Fabrication of grating structures on silicon carbide by femtosecond laser irradiation and wet etching
Bo Gao, Tao Chen, Vanthanh Khuat, Jinhai Si, and Xun Hou
A method for fabricating deep grating structures on a silicon carbide (SiC) surface by a femtosecond laser and chemical-selective etching is developed. Periodic lines corresponding to laser-induced structure change (LISC) are formed by femtosecond laser irradiation, and then the SiC material in the LISC zone is removedA method for fabricating deep grating structures on a silicon carbide (SiC) surface by a femtosecond laser and chemical-selective etching is developed. Periodic lines corresponding to laser-induced structure change (LISC) are formed by femtosecond laser irradiation, and then the SiC material in the LISC zone is removed by a mixed solution of hydrofluoric acid and nitric acid to form grating grooves. Grating grooves with a high-aspect ratio of approximately 25 are obtained. To obtain a small grating period, femtosecond laser exposure through a phase mask was used to fabricate grating structures with a 1.07 μm period on the surface of the SiC..
Chinese Optics Letters
- Publication Date: Feb. 10, 2016
- Vol. 14, Issue 2, 021407 (2016)
Fiber Optics and Optical Communications
Pilot-added carrier-phase recovery scheme for Nyquist M-ary quadrature amplitude modulation optical fiber communication system
Wenbo Zhang, Dongwei Pan, Xiaofei Su, Xiaoguang Zhang... and Xianfeng Tang|Show fewer author(s)
A new two-stage carrier-phase recovery scheme using a combination of an optical pilot-aided algorithm with the crossed constellation transformation algorithm for either square-framed or non-square-framed M-level-quadrature amplitude modulation (QAM) Nyquist systems is proposed. It is verified in 32- and 128-QAM systemsA new two-stage carrier-phase recovery scheme using a combination of an optical pilot-aided algorithm with the crossed constellation transformation algorithm for either square-framed or non-square-framed M-level-quadrature amplitude modulation (QAM) Nyquist systems is proposed. It is verified in 32- and 128-QAM systems that it can provide high linewidth tolerance with little complexity..
Chinese Optics Letters
- Publication Date: Feb. 10, 2016
- Vol. 14, Issue 2, 020601 (2016)
Temperature-insensitive refractive index sensor based on an optical fiber extrinsic Fabry–Perot interferometer processed by a femtosecond laser
Pengfei Liu, Lan Jiang, Sumei Wang, Zhitao Cao, and Peng Wang
An optical fiber extrinsic Fabry–Perot interferometer (EFPI) is designed and fabricated for refractive index (RI) sensing. To test the RI of liquid, the following two different methods are adopted: the wavelength tracking method and the Fourier-transform white-light interferometry (FTWLI). The sensitivities of sensors An optical fiber extrinsic Fabry–Perot interferometer (EFPI) is designed and fabricated for refractive index (RI) sensing. To test the RI of liquid, the following two different methods are adopted: the wavelength tracking method and the Fourier-transform white-light interferometry (FTWLI). The sensitivities of sensors with cavity lengths of 288.1 and 358.5 μm are 702.312 nm/RIU and 396.362 μm/RIU, respectively, by the two methods. Our work provides a new kind of RI sensor with the advantages of high sensitivity, mechanical robustness, and low cross sensitivity to temperature. Also, we provide a new method to deal with gold film with a femtosecond laser..
Chinese Optics Letters
- Publication Date: Feb. 10, 2016
- Vol. 14, Issue 2, 020602 (2016)
Investigating the light stability of solid-solution-based AgCl-AgBr and AgBr-TlI crystals
Alexandr S. Korsakov, Alexandr E. Lvov, Dmitry S. Vrublevsky, and Liya V. Zhukova
For the development of mid-infrared fiber-optical elements, one needs light-stable, flexible materials that are transparent within this spectral band. Solid solutions of silver and monadic thallium halides prove to be the most suitable crystalline media for these needs. We study the light stability variation of high-puFor the development of mid-infrared fiber-optical elements, one needs light-stable, flexible materials that are transparent within this spectral band. Solid solutions of silver and monadic thallium halides prove to be the most suitable crystalline media for these needs. We study the light stability variation of high-purity AgCl 1 x Br x 0 ≤ x ≤ 1 Ag 1 x Tl x Br 1 x I x 0 ≤ x ≤ 0.05 6500 350 cm 1
Chinese Optics Letters
- Publication Date: Feb. 10, 2016
- Vol. 14, Issue 2, 020603 (2016)
Imaging Systems
Effect of time bin size on accuracy of streak tube imaging lidar
Guangchao Ye, Rongwei Fan, Zhaodong Chen, Xinrui Xu... and Deying Chen|Show fewer author(s)
Streak tube imaging lidar (STIL) is an active imaging system that has a high range accuracy with the use of a pulsed laser transmitter and streak tube receiver to produce 3D range images. This work investigates the effect of the time bin size on the range accuracy of STIL systems based on the peak detection algorithm. Streak tube imaging lidar (STIL) is an active imaging system that has a high range accuracy with the use of a pulsed laser transmitter and streak tube receiver to produce 3D range images. This work investigates the effect of the time bin size on the range accuracy of STIL systems based on the peak detection algorithm. The numerical simulation indicates that the time bin size has a significant effect on the range accuracy, resulting in a modified analytical estimate of the range error. An indoor experiment with a planar target is carried out to validate the theory that shows the linear relationship between the range error and the time bin size. Finer 3D depth images of a fist model are acquired by using a smaller time bin size and the best range error of 0.003 m is achieved with the optimal time bin size of 0.07 ns..
Chinese Optics Letters
- Publication Date: Feb. 10, 2016
- Vol. 14, Issue 2, 021101 (2016)
Optoelectronics
Short-wave infrared detector with double barrier structure and low dark current density
Yu Dong, Guanglong Wang, Haiqiao Ni, Kangming Pei... and Zhichuan Niu|Show fewer author(s)
Short-wave infrared (SWIR) detectors combining AlAs/In0.53Ga0.47As/AlAs double barrier structure (DBS) with In0.53Ga0.47As absorption layer are fabricated by molecular beam epitaxy. By adding a p-charge layer, the dark current density of the detector is lowered by 3 orders of magnitude. The responsivity of the detectorShort-wave infrared (SWIR) detectors combining AlAs / In 0.53 Ga 0.47 As / AlAs In 0.53 Ga 0.47 As 3.77 × 10 14 W / Hz 1 / 2
Chinese Optics Letters
- Publication Date: Feb. 10, 2016
- Vol. 14, Issue 2, 022501 (2016)
Materials
Reduced photon quenching in Ce-doped NaYF4:Yb/Ho upconversion nanoparticles with core/shell structure
Shuai Ye, Jun Song, Dong Wang, Yuliang Tian... and Hanben Niu|Show fewer author(s)
The use of red light or near-infrared radiation as a luminescent probe for in vivo bio imaging is crucial in order to restrict the strong absorption of short-wavelength light below 600 nm in tissue. It is demonstrated that the emission color of Yb/Ho codoped NaYF4 nanoparticles can be tuned from green to red by incorpoThe use of red light or near-infrared radiation as a luminescent probe for in vivo bio imaging is crucial in order to restrict the strong absorption of short-wavelength light below 600 nm in tissue. It is demonstrated that the emission color of Yb/Ho codoped NaYF 4 Ce 3 + NaYF 4 : Yb / Ho Ce 3 + NaYF 4 : Yb / Ho Ce 3 + NaYF 4 : Yb 3 + 50 % NaYF 4 : Ho 3 + 0.5 % NaYF 4 : Yb / Ho / Ce Ce 3 + showLess
Chinese Optics Letters
- Publication Date: Feb. 10, 2016
- Vol. 14, Issue 2, 021601 (2016)
Crystal characterization and optical spectroscopy of Eu3+-doped CaGdAlO4 single crystal fabricated by the floating zone method
Ruijuan Li, Xiaodong Xu, Liangbi Su, Qinglin Sai... and Anita Półkoszek|Show fewer author(s)
A highly transparent Eu3+-doped CaGdAlO4 (CGA) single crystal is grown by the floating zone method. The segregation coefficient, x ray diffraction, and x ray rocking curve are detected, and the results reveal that the single crystal is of high quality. The f–f transitions of Eu3+ in the host lattice are discussed. The A highly transparent Eu 3 + CaGdAlO 4 f – f Eu 3 + D 0 5 – F 7 2 D 0 5 – F 7 1 Eu 3 + Eu : D 0 5
Chinese Optics Letters
- Publication Date: Feb. 10, 2016
- Vol. 14, Issue 2, 021602 (2016)
Optical Design and Fabrication
Efficiency balance of a light guide plate with microstructures for a see-through head-mounted display
Kai-Wei Zhao, and Jui-Wen Pan
The efficiency balance phenomenon for see-through head-mounted displays with different microstructure conditions can be found both theoretically and using optical simulation software. A simple mathematical calculation is used to determine the relationship between the real image (see-through function) energy and the virThe efficiency balance phenomenon for see-through head-mounted displays with different microstructure conditions can be found both theoretically and using optical simulation software. A simple mathematical calculation is used to determine the relationship between the real image (see-through function) energy and the virtual image energy. The simulation is based on factors taken from previous research studies. It is found that the balance value of the optical efficiency remains almost constant (66.63% to 67.38%) under different microstructure conditions. In addition, suitable conditions for the microstructures in see-through head-mounted displays for daily applications can be predicted..
Chinese Optics Letters
- Publication Date: Feb. 10, 2016
- Vol. 14, Issue 2, 022201 (2016)
Integrated Optics
Multiwavelength generation using an add-drop microring resonator integrated with an InGaAsP/InP sampled grating distributed feedback
S. E. Alavi, I. S. Amiri, M. R. K. Soltanian, R. Penny... and H. Ahmad|Show fewer author(s)
A system of an add-drop microring resonator integrated with a sampled grating distributed feedback (SG-DFB) is investigated via modeling and simulation with the time-domain traveling wave (TDTW) method. The proposed microring resonator comprises a SiO2 waveguide integrated with an InGaAsP/InP SG-DFB, and the SiO2 wavegA system of an add-drop microring resonator integrated with a sampled grating distributed feedback (SG-DFB) is investigated via modeling and simulation with the time-domain traveling wave (TDTW) method. The proposed microring resonator comprises a SiO 2 SiO 2 4.5 × 10 18 m 2 / W Q λ 0 1.93 × 10 5 2.87 × 10 5
Chinese Optics Letters
- Publication Date: Feb. 10, 2016
- Vol. 14, Issue 2, 021301 (2016)
Optics at Surfaces
Highly sensitive and wide-dynamic-range liquid-prism surface plasmon resonance refractive index sensor based on the phase and angular interrogations
Guoqiang Lan, Shugang Liu, Xueru Zhang, Yuxiao Wang, and Yinglin Song
In this study, a new method utilizing surface plasmon resonance (SPR) sensing technology based on the phase and angular interrogations for measuring the refractive index of a liquid prism is presented. An orthogonal sample box that combined the functions of a prism, cell box, and mirror is adopted to simplify the systeIn this study, a new method utilizing surface plasmon resonance (SPR) sensing technology based on the phase and angular interrogations for measuring the refractive index of a liquid prism is presented. An orthogonal sample box that combined the functions of a prism, cell box, and mirror is adopted to simplify the system and provide the convenience to implement the phase and angular interrogations. The angular interrogation is achieved by the motorized rotation stage with the new sample box, and the phase interrogation is achieved by the linear polarization interferometry between the s - and p -polarization components. The amplitude reflectivity and the phase angle, which are the functions of the incident angle, are obtained by the reflection intensity and the interference intensity of the lights directly. A sensitivity of 7.5 × 10 7
Chinese Optics Letters
- Publication Date: Feb. 10, 2016
- Vol. 14, Issue 2, 022401 (2016)
Ultrafast Optics
High contrast amplification at 1053 nm limited by pulse stretching-compressing process
Xiaoming Lu, Yujie Peng, Yanyan Li, Xiaoyang Guo... and Xinliang Wang|Show fewer author(s)
We report on our high-contrast laser based on high-contrast, high-energy seed injection, low-gain optical parametric chirped pulse amplification (OPCPA), and Nd:glass amplifiers, which can be used as the high-contrast front end of a high-power Nd:glass chirped pulse amplification (CPA) laser system. The energy of the sWe report on our high-contrast laser based on high-contrast, high-energy seed injection, low-gain optical parametric chirped pulse amplification (OPCPA), and Nd:glass amplifiers, which can be used as the high-contrast front end of a high-power Nd:glass chirped pulse amplification (CPA) laser system. The energy of the stretched 1053 nm high-contrast seed pulse increases to 60 μJ by optimizing the frequency doubling crystal in the pulse cleaning device. After passing through a two-stage low-gain OPCPA, a 2-pass 2-rod Nd:glass amplifier, and a compressor the amplified pulse of 131 mJ / 282 fs 10 7 – 10 8
Chinese Optics Letters
- Publication Date: Feb. 10, 2016
- Vol. 14, Issue 2, 023201 (2016)
Atmospheric and Oceanic Optics
Zonal decoupling algorithm for dual deformable mirror adaptive optics system
Wenjin Liu, Lizhi Dong, Ping Yang, and Bing Xu
A zonal decoupling algorithm used to control a dual deformable mirror (DM) is proposed. One of the two DMs is characterized with a large stroke (woofer), while the other one is characterized by a high spatial frequency (tweeter). A numerical model is used to compare the zonal decoupling algorithm with some traditional A zonal decoupling algorithm used to control a dual deformable mirror (DM) is proposed. One of the two DMs is characterized with a large stroke (woofer), while the other one is characterized by a high spatial frequency (tweeter). A numerical model is used to compare the zonal decoupling algorithm with some traditional zonal decoupling algorithms. The simulation results indicate that the algorithm presented in this Letter improves the performance in suppressing the coupling error. An experimental system is built to prove the effectiveness of this algorithm. The experiments demonstrate that the phase aberrations could be effectively compensated and that the coupling error could also be suppressed..
Chinese Optics Letters
- Publication Date: Feb. 10, 2016
- Vol. 14, Issue 2, 020101 (2016)
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