Transient emission wavelength estimation for DFB laser with temperature tuning  

作　　者：李金义 乔琛智 宋丽梅 郭庆华 

机构地区：[1]Key Laboratory of Advanced Electrical Engineering and Energy Technology, Tianjin Polytechnic University, Tianjin300387, China

出　　处：《Optoelectronics Letters》2017年第2期108-112,共5页光电子快报（英文版）

基　　金：supported by the National Natural Science Foundation of China(No.61505142);the Tianjin Natural Science Foundation(No.16JCQNJC02100)

摘　　要：The prediction method of dynamic wavelength is proposed for temperature tuning process. The temperature of the thermistor integrated in laser diode(LD) module is recorded to predict the LD chip temperature. Then according to the injection current and priori tuning characteristics of the LDs, the emission wavelength is estimated in real time. The method is validated by using a 1.58 μm distributed feedback(DFB) LD. The absorption spectra of mixture gas of CO_2 and CO are measured by means of the thermal tuning gas sensing system. The center wavelength of each absorption line is compared with the data in HITRAN2012 database. The results show that the deviations are less than 5 pm. This method fully meets the needs of spectroscopic measurement, and can be applied to spectroscopy, optical communications and other fields.

关 键 词：tuning priori spectroscopic validated junction overlapping VCSEL expensive instead gases 

分 类 号：TN24[电子电信—物理电子学]