Method of laser radiation spatially resolved spectral-temporal sweep display by streak camera technique

Alexander S. Logginov; Imant I. Vinogradov

doi:10.1117/12.209677

30 May 1995 Method of laser radiation spatially resolved spectral-temporal sweep display by streak camera technique

Alexander S. Logginov, Imant I. Vinogradov

Proceedings Volume 2513, 21st International Congress on: High-Speed Photography and Photonics; (1995) https://doi.org/10.1117/12.209677
Event: High-Speed Photography and Photonics: 21st International Congress, 1994, Taejon, Korea, Republic of

Abstract

A variety of possible image converter and streak camera technique applications for the junction lasers spectral-spatial and spectral- temporal radiation characteristics research in nano- and picosecond ranges is considered. Traditional methods of laser dynamics research, which are based on the streak camera technique, commonly use the time sweeps of near (far) field or the spectrally resolved near field of laser radiation. In the research of the laser diodes phase-locked arrays (LD PLA) dynamics it is important to analyze an instant spatial structure of each radiation mode of a complex multielement laser structure. It appears to be possible, to transform an usual 2D image of the spectral-spatial distribution (SSD) into an 1D and to sweep it in time. Examples of 1D SSD time sweeps for two- and three-element LD PLA are presented and their features are discussed. These spatially resolved spectral-temporal sweeps display an instant spatial structure of each laser radiation mode for any moment of a continuous time sweep. The given method can be applied also for the investigation of a broad area LD spectral dynamics and specific high-speed processes in optics.

Citation Download Citation

Alexander S. Logginov and Imant I. Vinogradov "Method of laser radiation spatially resolved spectral-temporal sweep display by streak camera technique", Proc. SPIE 2513, 21st International Congress on: High-Speed Photography and Photonics, (30 May 1995); https://doi.org/10.1117/12.209677

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