ULTRA-STABLE VISIBLE LASER SOURCE BASED ON COMB-INJECTION LOCKED DFB FOR GAUGE BLOCK MEASUREMENT

Han Young Ryu, Sung Hun Lee, Tae Bong Eom, H. Suh

Abstract

We demonstrate an ultra-stable visible laser source that can be generated from injection locked infrared DFB based on optical comb. The optical comb was used as injection source and locked to an acetylene stabilization laser as a reference source of optical communication region. The DFB laser was selectively injection locked from only one among the comb mode with 25 GHz spacing.<br />The ultra-stable visible source can be generated after wavelength conversion (2^nd harmonic) of injection locked DFB laser in the PPLN (periodically poled LiNbO₃) crystal. This source has a frequency stability of acetylene stabilized laser with 1.1 × 10^-12 at 1 s of averaging time.

Keywords

injection lock, optical comb, DFB laser

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IMEKO-WC-2009-TC2-299.pdf

DOI

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IMEKO TC

TC2 - Photonics

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