External optical feedback effects in a frequency locking dual frequency laser

2007 ◽  
Vol 271 (2) ◽  
pp. 492-498
Author(s):  
Wei Mao ◽  
Shulian Zhang ◽  
Yidong Tan ◽  
Weixin Liu
Keyword(s):  
Optical Feedback ◽  
Dual Frequency ◽  
Frequency Locking ◽  
Feedback Effects ◽  
Frequency Laser

A Novel Laser Feedback Interferometer for Metrology of Large Range Displacement

2008 ◽  
Vol 381-382 ◽  
pp. 251-254
Author(s):  
W. Mao ◽  
S.I. Zhang
Keyword(s):  
Phase Difference ◽  
Quartz Crystal ◽  
Large Range ◽  
Optical Feedback ◽  
Measurement Range ◽  
Intensity Modulation ◽  
Dual Frequency ◽  
Feedback Effects ◽  
External Feedback ◽  
Frequency Laser

This paper presents a novel laser feedback interferometer for metrology of large range displacement. A Birefringence-Zeeman dual frequency laser is applied in the system. Due to its strong optical feedback effects, the intensity modulation curves of the two polarized lights will have a zero intensity part in a period. A quartz crystal is used in the external feedback cavity as a birefringent element. And a phase difference between the two lights can be adjusted to π/2. Thus, the intensity modulation curves in a period can be divided into four polarization zones with equal width. When the displacement of the object to be measured is produced, the four polarization zones will appear in sequence. According to the appearance order of the four zones, the direction of the displacement can be discriminated without ambiguity and the resolution of the system can be greatly increased. It is confirmed that the laser feedback interferometer has a resolution of 79.1nm and with a linearity of 0.01% over the whole measurement range of 15mm.

A 450 MHz frequency difference dual-frequency laser with optical feedback

2004 ◽  
Vol 231 (1-6) ◽  
pp. 349-356 ◽  
Author(s):  
Gang Liu ◽  
Shulian Zhang ◽  
Lu Li ◽  
Yan Li ◽  
Jun Zhu
Keyword(s):  
Optical Feedback ◽  
Frequency Difference ◽  
Dual Frequency ◽  
Frequency Laser

Strong optical feedback in birefringent dual frequency laser

2006 ◽  
Vol 15 (2) ◽  
pp. 340-346 ◽  
Author(s):  
Mao Wei ◽  
Zhang Shu-Lian
Keyword(s):  
Optical Feedback ◽  
Dual Frequency ◽  
Frequency Laser

Beat-note jitter suppression in a dual-frequency laser using optical feedback

2007 ◽  
Vol 32 (9) ◽  
pp. 1099 ◽  
Author(s):  
Luc Kervevan ◽  
Hervé Gilles ◽  
Sylvain Girard ◽  
Mathieu Laroche
Keyword(s):  
Optical Feedback ◽  
Dual Frequency ◽  
Beat Note ◽  
Frequency Laser

Single high-order round-trip feedback effects in orthogonally polarized dual frequency laser

2012 ◽  
Vol 107 (2) ◽  
pp. 333-338 ◽  
Author(s):  
Z. Zeng ◽  
S. Zhang ◽  
Y. Tan ◽  
P. Zhang ◽  
Y. Li
Keyword(s):  
High Order ◽  
Dual Frequency ◽  
Round Trip ◽  
Feedback Effects ◽  
Frequency Laser

scholarly journals Study on displacement measurement with optical feedback of dual frequency laser

2006 ◽  
Vol 55 (9) ◽  
pp. 4704
Author(s):  
Mao Wei ◽  
Zhang Shu-Lian ◽  
Zhang Lian-Qing ◽  
Zhu Jun ◽  
Li Yan
Keyword(s):  
Optical Feedback ◽  
Displacement Measurement ◽  
Dual Frequency ◽  
Frequency Laser

Optical feedback characteristics in a dual-frequency laser during laser cavity tuning

2005 ◽  
Vol 14 (10) ◽  
pp. 1984-1989 ◽  
Author(s):  
Liu Gang ◽  
Zhang Shu-Lian ◽  
Li Yan ◽  
Zhu Jun
Keyword(s):  
Optical Feedback ◽  
Laser Cavity ◽  
Dual Frequency ◽  
Frequency Laser
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