一种宽调谐热电冷却外腔量子级联激光器的连续波运行

Continuous-wave operation of a broadly tunable thermoelectrically cooled external cavity quantum-cascade laser.

作者信息

Maulini Richard, Yarekha Dmitri A, Bulliard Jean-Marc, Giovannini Marcella, Faist Jérôme, Gini Emilio

机构信息

Institute of Physics, University of Neuchâtel, 1 A.-L. Breguet, CH-2000 Neuchâtel, Switzerland.

出版信息

Opt Lett. 2005 Oct 1;30(19):2584-6. doi: 10.1364/ol.30.002584.

DOI:10.1364/ol.30.002584

PMID:16208907

Abstract

Continuous-wave operation of an external cavity quantum-cascade laser on a thermoelectric cooler is reported. The active region of the gain element was based on a bound-to-continuum design emitting near 5.15 microm. The external cavity setup was arranged in a Littrow configuration. The front facet of the gain chip was antireflection coated. The laser could be tuned over more than 170 cm(-1) from 4.94 to 5.4 microm and was single mode over more than 140 cm(-1). The output power was in excess of 10 mW over approximately 100 cm(-1) and in excess of 5 mW over approximately 130 cm(-1) at -30 degrees C.

摘要

报道了一种在热电冷却器上的外腔量子级联激光器的连续波运行情况。增益元件的有源区基于束缚到连续态设计，发射波长接近5.15微米。外腔装置采用利特罗配置。增益芯片的前表面镀有抗反射涂层。该激光器可在4.94至5.4微米范围内调谐超过170厘米⁻¹，并且在超过140厘米⁻¹范围内为单模。在-30℃时，输出功率在约100厘米⁻¹范围内超过10毫瓦，在约130厘米⁻¹范围内超过5毫瓦。