OPTICAL ABSORPTION SPECTROMETRY SYSTEM INCLUDING DICHROIC BEAM COMBINER AND SPLITTER

摘要

PROBLEM TO BE SOLVED: To solve the problem in which, when different experiments require different light wavelengths and/or light wavelength ranges, a process of physically replacing a light source with another light source having appropriate characteristics is generally inefficient and time consuming, increasing complexity and cost while reducing reliability.SOLUTION: An optical absorption spectrometry system (100, 400) includes first and second light sources, a dichroic beam combiner, and a wavelength selective module. The first light source (111, 411) emits first light (113, 413) having first wavelengths within a first wavelength range, and the second light source (112, 412) emits second light (114, 414) having second wavelengths within a second wavelength range different from the first wavelength range. The dichroic beam combiner (115, 415) includes a predetermined first reflectance/transmission transition region, and is configured to transmit a first portion of the first light and to reflect a second portion of the second light to provide combined light (116, 416a).