Laser Setup for Volume Diffractive Optical Elements Recording in Photo-Thermo-Refractive Glass
Abstract
Recorded in photo-thermo-refractive (PTR) glass volume Bragg gratings (VBGs) have found great applications for enhancement of lasers brightness and fine spectral filtering. However, further increase of size of holographic optical elements, which are required for high power laser applications, is restrained because of absence of available lasers emitting on PTR glass photosensitivity region (300-350 nm) with large coherence length and high power simultaneously. The recently discovered photosensitivity of PTR glass at 355 nm enabled development of specs for a new laser system to record large aperture holograms. This laser was fabricated by Continuum Corp., a hologram recording setup with this laser was assembled at the Center for Research and Education in Optics and Lasers (CREOL), College of Optics and Photonics, and successful recording of holographic optical elements was demonstrated. Research programs, which will benefit from the requested instrumentation, are in the areas of high power solid state, fiber and semiconductor laser systems, spectral beam combining of high power lasers, and stretching and compression of ultra-short laser pulses. CREOL will be able to develop new holographic optical elements that recently were considered impossible to create. Moreover, new phenomena recently discovered with this laser would pave a way for extension of spectral range of VBG operation to shorter wavelengths in UV and to longer wavelengths in IR.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 14, 2016
- Accession Number
- AD1014732
Entities
People
- Ivan Divliansky
- Leonid Glebov
Organizations
- University of Central Florida