SELF-HETERODYNE DETECTION SYSTEM INCLUDING OPTICAL FREQUENCY COMB LIGHT SOURCE

• Main Authors: SONG MINJE, LEE TAEHYUN, LIM SEUNGYOUNG, JUNG YOUNG JIN, AHN JOON TAE, CHOI GYU DONG, SONG MINHYUP
• Format: Patent
• Language: English; Japanese
• Published: 26.06.2024
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

To provide a self-heterodyne detection system capable of stably measuring a wide band laser line width for a long time.SOLUTION: A self-heterodyne detection system includes: a light source for generating light; a light detector for detecting the light; a programmable filter provided between the light detector and the light source; and an electrical spectrum analyzer that is connected to the light detector and analyzes a frequency and a wavelength of the light using a detection signal of the light detector. The light source may include a frequency comb light source.SELECTED DRAWING: Figure 2 【課題】広帯域レーザー線幅を安定的かつ長時間に測定することができるセルフヘテロダイン検出システムを提供する。【解決手段】本発明はセルフヘテロダイン検出システムを開示する。そのシステムは、光を生成する光源と、前記光を検出する光検出器と、前記光検出器と前記光源との間に設けられたプログラマブルフィルターと、前記光検出器に連結され、前記光検出器の検出信号を利用して前記光の周波数及び波長を分析する電気スペクトル分析器と、を含む。前記光源は、周波数コム光源を含むことができる。【選択図】図２