Widely continuous-tuning single-wavelength laser based on commercial multimode VCSELs

Tsu-Chiang Yen; Chuan-Pi Hsu; Yu-Heng Wu; Da-Long Cheng; Wang-Chuang Kuo

doi:10.1117/12.885809

31 December 2010 Widely continuous-tuning single-wavelength laser based on commercial multimode VCSELs

Tsu-Chiang Yen, Chuan-Pi Hsu, Yu-Heng Wu, Da-Long Cheng, Wang-Chuang Kuo

Proceedings Volume 7544, Sixth International Symposium on Precision Engineering Measurements and Instrumentation; 75444B (2010) https://doi.org/10.1117/12.885809
Event: Sixth International Symposium on Precision Engineering Measurements and Instrumentation, 2010, Hangzhou, China

Abstract

The conventional vertical-cavity surface-emitting lasers (VCSELs) are designed to have a very short resonant cavity. Therefore, the longitudinal mode of the VCSELs is intrinsically single; and the VCSELs are expected to be an excellent instrument for many precision measurements that demand high-purity single-wavelength light sources. However, the laser facet of the conventional VCSELs is relatively large, around 10 μm, which admits the emission of multi-transverse modes. Accordingly, conducting a single transverse mode from VCSELs is an important research topic. In this research, the beam-profile-adapted optical feedback (BPAF) method was investigated by a single-mode fiber cavity (SMFC), in which the beam profile of the multimode-VCSEL's output was adapted to the fundamental-transverse mode of an optical fiber to feedback into the laser's cavity. The operational principle and performance of BPAF will be presented. The experimental results successfully demonstrated that BPAF can efficiently conduct multimode VCSELs to stably lase the fundamental transverse mode with a wide tuning range of about 1090 GHz, or 2.62 nm, and a spectrum purity around 20 dB. Some precision spectrum measurements will be exhibited. These results will help to extend the application of the VCSELs in many precision measurements.

Citation Download Citation

Tsu-Chiang Yen, Chuan-Pi Hsu, Yu-Heng Wu, Da-Long Cheng, and Wang-Chuang Kuo "Widely continuous-tuning single-wavelength laser based on commercial multimode VCSELs", Proc. SPIE 7544, Sixth International Symposium on Precision Engineering Measurements and Instrumentation, 75444B (31 December 2010); https://doi.org/10.1117/12.885809

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KEYWORDS

Vertical cavity surface emitting lasers

Single mode fibers

Iris

Precision measurement

Laser resonators

Polarization

Semiconductor lasers

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