Variable-Aperture Calorimeter for an Unstable Resonator.
Abstract
A new technique for measuring the output power from a cw edge-coupled unstable resonator has been developed and applied to a cw DF laser. An internal-cavity calorimeter was used that permits measurement of output power with a variable rectangular-mode geometry while containing the radiation inside the resonator. The variable aperture calorimeter-absorbing scraper (VACAS) device consists of an absorbing copper plate calorimeter assembly, which replaces the 45-deg output coupling mirror of a conventional edge-coupled unstable cavity.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1976
- Accession Number
- ADA026576
Entities
People
- Donald A. Durran
- Richard A. Chodzko
- Robert R. Giedt
- Stephen B. Mason
Organizations
- The Aerospace Corporation