Inline interferometer in an optical-feedback semiconductor laser

Authors

Julius Federico M. Jecong ⋅ PH National Institute of Physics, University of the Philippines Diliman
Percival F. Almoro ⋅ PH National Institute of Physics, University of the Philippines Diliman
Alvarado Tarun ⋅ PH National Institute of Physics, University of the Philippines Diliman
Caesar A. Saloma ⋅ PH National Institute of Physics, University of the Philippines Diliman

Abstract

A semiconductor laser inline interferometer configuration for displacement measurement and surface profiling with directional information is presented. Light coming out from the laser is reflected back to the laser medium by two external parallel mirrors. Two reflected beams from the mirrors will interfere in the laser medium causing variation in the laser output power. The performance ofinline interferometer at different arm lengths were numerically investigated and optimized. We model the theoretical behavior of this system into its equivalent Fabry-Perot resonator to derive the dependence of output power on path difference of the interferometer arms. Numerical results are in agreement with experimental results.

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Issue

2003: Proceedings of the 21st Samahang Pisika ng Pilipinas Physics Congress

Article ID

SPP-2003-2C-01

Section

Optics and Photonics

Published

2003-10-22

How to Cite

[1]

JFM Jecong, PF Almoro, A Tarun, and CA Saloma, Inline interferometer in an optical-feedback semiconductor laser, Proceedings of the Samahang Pisika ng Pilipinas 21, SPP-2003-2C-01 (2003). URL: https://proceedings.spp-online.org/article/view/SPP-2003-2C-01.