Generation of stable penta-wavelength ytterbium doped fiber laser by spatial-mode beating in 1-µm waveband

Abstract Penta-wavelength ytterbium doped-fiber laser had been successfully generated by usingspatial mode beating method at room temperature. A G652D premium fiber patch cable was inserted inside the polarization controller (PC) and connected to an ytterbium-doped fiber ring cavity. By increasing the pump power, stable multi-wavelength with side-mode suppression ratio (SMSR) from 25 dB to 40 dB were obtained from dual-wavelength and up to penta-wavelengths respectively. The uniform wavelength interval spacing was 0.67 nm whereas peak power fluctuation and wavelength shifts were 0.6 dBm and 0.01 nm, respectively for all sets of multi-wavelength. These simple, easy and reliable system offer a stable multi-wavelength generation in a 1-micrometer waveband.

Download Full-text

Characteristic Test Analysis of Graphene Plus Optical Microfiber Coupler Combined Device and Its Application in Fiber Lasers

Sensors ◽

10.3390/s20061645 ◽

2020 ◽

Vol 20 (6) ◽

pp. 1645

Author(s):

Yang Yu ◽

Hao Chen ◽

Zhenfu Zhang ◽

Dingbo Chen ◽

Jianfei Wang ◽

...

Keyword(s):

Fiber Laser ◽

Fiber Lasers ◽

Signal To Noise Ratio ◽

Ring Cavity ◽

Characteristic Analysis ◽

Power Fluctuation ◽

Test Analysis ◽

Multi Wavelength ◽

Optical Microfiber ◽

Integrated Device

In this study, a graphene and optical microfiber coupler (OMC) integrated device (GOMC) was proposed and fabricated. After its characteristic analysis and testing, it was applied to the development of adjustable multi-wavelength fiber lasers. By integrating the OMC with graphene, the polarization dependence of OMC was enhanced. Meanwhile, the novel GOMC was given the capabilities of filtering, coupling, beam splitting, and polarization correlation. When the GOMC was integrated as a filter and beam splitter into the ring cavity of the fiber laser, the proposed GOMC-based fiber laser could achieve single-wavelength and multi-wavelength regulated output. The laser had a 3 dB linewidth of less than 30 pm, a signal-to-noise ratio of approximately 40 dB, and an output power fluctuation of less than 1 dB. The GOMC could also be used for the development of functional devices, such as adjustable mode lockers and mode coupling selectors, which provide an excellent experimental platform for new fiber lasers and the research of multi-dimensional light-field manipulation.

Download Full-text

Tunable multi-wavelength thulium-doped fiber laser incorporating two-stage cascaded Sagnac loop comb filter

Modern Physics Letters B ◽

10.1142/s0217984916502924 ◽

2016 ◽

Vol 30 (21) ◽

pp. 1650292 ◽

Cited By ~ 6

Author(s):

Lianqing Zhu ◽

Wei He ◽

Mingli Dong ◽

Xiaoping Lou ◽

Fei Luo

Keyword(s):

Fiber Laser ◽

Wavelength Division Multiplex ◽

Comb Filter ◽

Two Stage ◽

Wavelength Division ◽

Mode Suppression ◽

Multi Wavelength ◽

Polarization Maintaining ◽

Simultaneous Adjustment ◽

Side Mode

A tunable multi-wavelength narrow-linewidth thulium-doped fiber laser employing two-stage cascaded Sagnac loop mirrors is proposed and experimentally demonstrated. The designed fiber laser is composed of a pump source, wavelength division multiplex, circulator, thulium-doped fiber, polarization controllers (PCs), couplers and polarization-maintaining fibers (PMFs). Two cascaded Sagnac loops are used as the cavity reflector and filter, and the proposed filter is fabricated using two sections of PMFs with 2-m and 1-m lengths, respectively. In the experiment, the laser threshold is 110 mW, and laser can emit single, double, triple, quadruple and quintuple wavelengths in the spectral range of 1873–1901 nm through the simultaneous adjustment of the two PCs. The power fluctuations and 3-dB linewidth are less than 2.1 dB and 0.2 nm, respectively, over 10 min at room temperature, and the side-mode suppression ratio is greater than 20 dB. The proposed laser will be useful in various fields, such as spectral analysis, fiber sensing and optical communication.

Download Full-text

Wavelength-Flexible Thulium-Doped Fiber Laser Based on Digital Micromirror Array

Micromachines ◽

10.3390/mi11121036 ◽

2020 ◽

Vol 11 (12) ◽

pp. 1036

Author(s):

Xiao Chen ◽

Dezheng Dai ◽

Yi Zhang ◽

Hongyuan Wu ◽

Yunshu Gao ◽

...

Keyword(s):

Fiber Laser ◽

Suppression Ratio ◽

Room Temperature ◽

Laser System ◽

Two Dimensional ◽

Digital Micromirror Device ◽

Power Fluctuation ◽

Lasing Wavelength ◽

Mode Suppression ◽

Side Mode

Wavelength-tunable thulium-doped fiber laser is demonstrated employing a digital micromirror device (DMD) in combination with a fixed grating. The diffraction property of four typical models of DMDs and its steering efficiency for the laser system are analyzed based on two-dimensional grating theory. By spatially modulating reflective patterns on a DMD, the stable, fast, and flexible tuning of lasing wavelength from 1930 nm to 2000 nm is achieved with wavelength tuning accuracy of 0.1 nm. The side-mode suppression ratio is larger than 50 dB around the 2 μm band with 3 dB linewidth less than 0.05 nm. The wavelength drift and power fluctuation are lower than 0.05 nm and 0.1 dB within 1 h at the room temperature, respectively.

Download Full-text

A tunable narrow-line-width multi-wavelength Er-doped fiber laser based on a high birefringence fiber ring mirror and an auto-tracking filter

Optics Communications ◽

10.1016/j.optcom.2007.09.009 ◽

2008 ◽

Vol 281 (1) ◽

pp. 90-93 ◽

Cited By ~ 16

Author(s):

Xiu-jie Jia ◽

Yan-ge Liu ◽

Li-bin Si ◽

Zhan-cheng Guo ◽

Sheng-gui Fu ◽

...

Keyword(s):

Fiber Laser ◽

Line Width ◽

Narrow Line ◽

Fiber Ring ◽

High Birefringence ◽

Narrow Line Width ◽

Multi Wavelength ◽

Tracking Filter ◽

Er Doped

Download Full-text

S-band multi-wavelength ring cavity Brillouin Raman fiber laser exploiting different FBG reflectivity

2016 3rd International Conference on Electronic Design (ICED) ◽

10.1109/iced.2016.7804684 ◽

2016 ◽

Author(s):

M. Syazwan Sohaimi ◽

N.A.M. Ahmad Hambali ◽

N. Roshidah ◽

M.H.A. Wahid ◽

M.M. Shahimin ◽

...

Keyword(s):

Fiber Laser ◽

Ring Cavity ◽

Raman Fiber Laser ◽

Multi Wavelength

Download Full-text

Single Brillouin frequency shifted S-band multi-wavelength Brillouin-Raman fiber laser utilizing fiber Bragg grating and Raman amplifier in ring cavity

Optical Materials ◽

10.1016/j.optmat.2016.07.008 ◽

2016 ◽

Vol 60 ◽

pp. 38-44 ◽

Cited By ~ 1

Author(s):

A.H. Reshak ◽

N.A.M. Ahmad Hambali ◽

M.M. Shahimin ◽

M.H.A. Wahid ◽

Nur Elina Anwar ◽

...

Keyword(s):

Fiber Laser ◽

Fiber Bragg Grating ◽

Ring Cavity ◽

Bragg Grating ◽

Raman Fiber Laser ◽

Raman Amplifier ◽

Multi Wavelength

Download Full-text

Ring cavity multi-wavelength Brillouin-erbium fiber laser utilizing a fiber Bragg grating filter

2008 IEEE International Conference on Semiconductor Electronics ◽

10.1109/smelec.2008.4770333 ◽

2008 ◽

Cited By ~ 1

Author(s):

M. N. Mohd Nasir ◽

Z. Yusoff ◽

M. H. Al-Mansoori ◽

H. A. Abdul Rashid ◽

P. K. Choudhury

Keyword(s):

Fiber Laser ◽

Fiber Bragg Grating ◽

Ring Cavity ◽

Bragg Grating ◽

Multi Wavelength

Download Full-text

DUAL WAVELENGTH HIGH POWER DOUBLE-CLAD ERBIUM/YTTERBIUM-DOPED FIBER LASER

Journal of Nonlinear Optical Physics & Materials ◽

10.1142/s0218863511006236 ◽

2011 ◽

Vol 20 (04) ◽

pp. 443-451

Author(s):

M. R. A. MOGHADDAM ◽

S. W. HARUN ◽

S. SHAHI ◽

H. AHMAD

Keyword(s):

Fiber Laser ◽

High Power ◽

Wavelength Region ◽

Dual Wavelength ◽

Comb Filter ◽

Mode Competition ◽

Mode Suppression ◽

Loop Mirror ◽

Power Variance ◽

Side Mode

A dual wavelength high power double-clad erbium/ytterbium-doped fiber laser with a narrowest spacing of 0.4 nm and a M2 value of close to unity is presented in the region of 1565 nm. This result can be realized with a significant improvement of the mode competition problem using a loop mirror as a comb filter. The wavelength region can also be varied using polarization controllers in the loop mirror. This dual-wavelength fiber laser with side mode suppression ratio (SMSR) of 40 dB is quite stable, and the output power variance is as low as 0.46 dB.

Download Full-text

Fiber Laser Mode Cleaning by Frequency Locking to a Fiber Ring Cavity

ACOFT/AOS 2006 - Australian Conference on Optical Fibre Technology/Australian Optical Society ◽

10.1109/acoft.2007.4516292 ◽

2007 ◽

Author(s):

Jong H. Chow ◽

Ian C.M. Littler ◽

David E. McClelland ◽

Malcolm B. Gray

Keyword(s):

Fiber Laser ◽

Ring Cavity ◽

Laser Mode ◽

Frequency Locking ◽

Fiber Ring

Download Full-text

Stable Single-mode 20-channel Uniform Buried Grating DFB QCL Array Emitting at ~8.3 μm

10.21203/rs.3.rs-1084361/v1 ◽

2021 ◽

Author(s):

Fan Ye ◽

Fengmin Cheng ◽

Zhiwei Jia ◽

JinChuan Zhang ◽

Ning Zhuo ◽

...

Keyword(s):

Peak Power ◽

Room Temperature ◽

Tuning Range ◽

Single Mode ◽

Edge Mode ◽

Quantum Cascade ◽

Mode Suppression ◽

Pulsed Mode ◽

Side Mode ◽

Front Facet

Abstract A 20-channel distributed feedback (DFB) quantum cascade laser (QCL) arrays based on uniform buried grating have been demonstrated. In pulsed mode, peak power reaches 80 mW and slope efficiency reaches 167 mW/A for 2.5-mm-long laser in the arrays at room temperature. The loss difference of two band-edge mode increases when reflectivity of the front facet becomes small, which prevents the mode hopping. The device shows linear tuning after the anti-reflectivity coating is deposited in the front facet, maintaining peak power of 64 mW. The whole chip covers a tuning range of 64 cm-1, centering at 8.3 μm, with side-mode-suppression-ratio over 20 dB at room temperature.

Download Full-text