NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Collections About News Help Login
Back to Results
High power pumped MID-IR wavelength devices using nonlinear frequency mixing (NFM)Laser diode pumped mid-IR wavelength sources include at least one high power, near-IR wavelength, injection and/or sources wherein one or both of such sources may be tunable providing a pump wave output beam to a quasi-phase matched (QPM) nonlinear frequency mixing (NFM) device. The NFM device may be a difference frequency mixing (DFM) device or an optical parametric oscillation (OPO) device. Wavelength tuning of at least one of the sources advantageously provides the ability for optimizing pump or injection wavelengths to match the QPM properties of the NFM device enabling a broad range of mid-IR wavelength selectivity. Also, pump powers are gain enhanced by the addition of a rare earth amplifier or oscillator, or a Raman/Brillouin amplifier or oscillator between the high power source and the NFM device. Further, polarization conversion using Raman or Brillouin wavelength shifting is provided to optimize frequency conversion efficiency in the NFM device.
Document ID
20080006979
Acquisition Source
Ames Research Center
Document Type
Other - Patent
Authors
Sanders, Steven
Lang, Robert J.
Waarts, Robert G.
Date Acquired
August 24, 2013
Publication Date
May 8, 2001
Subject Category
Lasers And Masers
Funding Number(s)
CONTRACT_GRANT: NAS2-14200
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Patent
US-PATENT-6,229,828
Patent Application
US-PATENT-APPL-SN-123387

Related Records

There are no records associated with this record.
No Preview Available