| Citation: | WANG Yu-xin, ZHONG Shan, LIANG Wei, ZHAO Feng, ZHAN Zhi-ming, YAN Bai-yi, KANG Song-bai. Improved method for frequency-thermal tuning of a self-injection locked laser[J]. Chinese Optics, 2024, 17(6): 1265-1271. doi: 10.37188/CO.2024-0025
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In order to expand the continuous tunable range of a self-injection-locked laser frequency, the variation relationship of the injected locking phase of the Fabry-Perot (FP) microcavity during the frequency-thermal tuning process is studied. Based on the traditional frequency-thermal tuning methods, we explore the frequency and phase parameter characteristics of a self-injection locked laser. We propose an improved algorithm which adds self-injection locking phase compensation and DFB chip current compensation during frequency-thermal tuning methods. Experimental validation of this algorithm is conducted on a FP micro-cavity self-injection locked laser. The laser operates at a wavelength of
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