| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
|
|
|
|
Phase Locking of Laser Diode Array by Using an Off-Axis External Talbot Cavity |
| SU Zhou-Ping1**,JI Zhi-Cheng2,ZHU Zhuo-Wei1,QUE Li-Zhi1,ZHU Yun1 |
1School of Science, Jiangnan University, Wuxi 214122
2School of Internet of Things Engineering, Jiangnan University, Wuxi 214122 |
|
| Cite this article: |
|
SU Zhou-Ping**, JI Zhi-Cheng, ZHU Zhuo-Wei et al 2012 Chin. Phys. Lett. 29 054210 |
|
|
|
|
Abstract Phase locking of a laser diode array is demonstrated experimentally by using an off-axis external Talbot cavity with a feedback plane mirror. Due to good spatial mode discrimination, the cavity does not need a spatial filter. By employing the cavity, a clear and stable far-field interference pattern can be observed when the driver current is less than 14 A. In addition, the spectral line width can be reduced to 0.8 nm. The slope efficiency of the phase-locked laser diode array is about 0.62 W/A.
|
| Keywords:
42.55.Px
42.60.Da
42.60.Jf
|
|
|
Received: 21 December 2011
Published: 30 April 2012
|
|
| PACS: |
42.55.Px
|
(Semiconductor lasers; laser diodes)
|
| |
42.60.Da
|
(Resonators, cavities, amplifiers, arrays, and rings)
|
| |
42.60.Jf
|
(Beam characteristics: profile, intensity, and power; spatial pattern formation)
|
|
|
|
|
|
[1] Gao X, Zheng Y J, Kan H and Shinoda K 2004 Opt. Lett. 29 361
[2] Clarkson W A and Hanna D C 1996 Opt. Lett. 21 375
[3] Liu B, Liu Y and Yehuda B 2009 Appl. Opt. 48 365
[4] Liu B, Liu Y and Yehuda B 2008 Opt. Express 16 20935
[5] Li Q Zhao P F and Guo W R 2006 Appl. Phys. Lett. 89 231120
[6] Leger J R, Scott M L and Veldkamp W B 1988 Appl. Phys. Lett. 52 1771
[7] DAmato F X, Siebert E T and Roychoudhuri C 1989 Appl. Phys. Lett. 55 816
[8] Leger J R 1989 Appl. Phys. Lett. 55 334
[9] Robert W, David M, Derek N, David W, William S and Donald S 1991 Appl. Phys. Lett. 58 2586
[10] Chen J, Wu X D, Ge J H, Hermerschmidt A and Eichler H J 2004 Appl. Phys. Lett. 85 525
[11] Liu C, Ge J H, Chen J et al 2007 Opt. Laser Technol. 39 169
[12] Chi M J, B øgh N S and Thestrup B 2004 Appl. Phys. Lett. 85 1107
[13] Chi M J, Thestrup B and Petersen P M 2004 Proc. SPIE 5336 33
[14] Samsøe E, Malm. P, Andersen P E et al 2003 Opt. Commun. 219 369
[15] Ge J H Chen J Andreas H and Eichler H J 2003 Chin. Opt. Lett. 1 334 |
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
