Device for frequency modulation of a laser output spectrum

Patent · Tue Aug 12 00:00:00 EDT 1986

OSTI ID:7245234

Beene, J R; Bemis, Jr, C E

A device is provided for fast frequency modulating the output spectrum of multimode lasers and single frequency lasers that are not actively stabilized. A piezoelectric transducer attached to a laser cavity mirror is driven in an unconventional manner to excite resonance vibration of the transducer to rapidly, cyclicly change the laser cavity length. The result is a cyclic sweeping of the output wavelength sufficient to fill the gaps in the laser output frequency spectrum. When such a laser is used to excite atoms or molecules, complete absorption line coverage is made possible. 2 figs.

• Assignee: Dept. of Energy, Washington, DC (United States)
• Patent Number(s): US 4606031; A
• Application Number: PPN: US 6-631693
• OSTI ID: 7245234
• Resource Relation: Patent File Date: 17 Jul 1984
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
LASER CAVITIES
LENGTH
LASER RADIATION
FREQUENCY MODULATION
EMISSION SPECTRA
LASER MIRRORS
PIEZOELECTRICITY
VARIATIONS
DIMENSIONS
ELECTRICITY
ELECTROMAGNETIC RADIATION
MIRRORS
MODULATION
RADIATIONS
SPECTRA
426002* - Engineering- Lasers & Masers- (1990-)