Dual-wavelength diode laser with electrically adjustable wavelength distance at 785 nm

作     者：Sumpf, Bernd Kabitzke, Julia Fricke, Joerg Ressel, Peter Mueller, Andre Maiwald, Martin Traenkle, Guenther 

作者机构：Leibniz Inst Hochstfrequenztech Photon Ferdinand Braun Inst Gustav Kirchhoff Str 4 D-12489 Berlin Germany 

出 版 物：《OPTICS LETTERS》 (光学快报)

年 卷 期：2016年第41卷第16期

页      面：3694-3697页

核心收录：

学科分类：070207[理学-光学] 07[理学] 08[工学] 0803[工学-光学工程] 0702[理学-物理学] 

基　　金：European Commission (EC) [MIB 667933-2] 

主　　题：Diode lasers Lasers distributed-feedback Raman spectroscopy Bragg reflectors 

摘      要：A spectrally adjustable monolithic dual-wavelength diode laser at 785 nm as an excitation light source for shifted excitation Raman difference spectroscopy (SERDS) is presented. The spectral distance between the two excitation wavelengths can be electrically adjusted between 0 and 2.0 nm using implemented heater elements above the distributed Bragg reflector (DBR) gratings. Output powers up to 180mWat a temperature of 25 degrees C were measured. The spectral width is smaller than 13 pm, limited by the spectrum analyzer. The device is well-suited for Raman spectroscopy, and the flexible spectral distance allows a target-specific adjustment of the excitation light source for shifted excitation Raman difference spectroscopy (SERDS).