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Proceedings Article

High-power 1300 nm FDML swept laser using polygon-based narrowband optical scanning filter

[+] Author Affiliations
Youxin Mao, Costel Flueraru, Shoude Chang

National Research Council Canada (Canada)

Sherif Sherif

University of Manitoba (Canada)

Proc. SPIE 7168, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XIII, 716822 (February 20, 2009); doi:10.1117/12.807511
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From Conference Volume 7168

  • Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XIII
  • James G. Fujimoto; Joseph A. Izatt; Valery V. Tuchin
  • San Jose, CA | January 24, 2009

abstract

Swept-source optical coherence tomography (SS-OCT) has received much attention in recent years because of its higher sensitivity in high speed imaging. A fast and high powered wavelength-swept laser is important for SS-OCT since its speed and sensitivity directly rely on the sweeping rate and the output power of the swept laser. Much progress has been made on the development of high-speed swept lasers, but their output power has been limited. We present a Fourierdomain mode-locked 1300 nm wavelength-swept laser that uses a polygon-based narrowband optical scanning filter and a high-efficiency semiconductor optical amplifier. The optical filter and laser structure were designed and constructed for an optimized optical power output. Average output powers of 71 mW has been achieved without an external amplifier, while the wavelength is swept continuously from 1247 nm to 1360 nm. A unidirectional wavelength sweeping rate of 7452 nm/ms (65.95 kHz repetition rate) was achieved by using a 72 facet polygon scanner with a rotation rate of 916 revolutions per second. The instantaneous linewidth of this laser is 0.09 nm, which corresponds to a coherence length of 16 mm. This laser is most suitable for optical coherence tomography applications.

© (2009) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Youxin Mao ; Costel Flueraru ; Shoude Chang and Sherif Sherif
"High-power 1300 nm FDML swept laser using polygon-based narrowband optical scanning filter", Proc. SPIE 7168, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XIII, 716822 (February 20, 2009); doi:10.1117/12.807511; http://dx.doi.org/10.1117/12.807511


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