Self-mode-locking quantum cascade laser

Details Self-mode-locking quantum cascade laser Self-mode-locking quantum cascade laser

H - Electricity

01

S

H01S 5/065 (2006.01) H01S 5/30 (2006.01) H01S 5/34 (2006.01) H01S 5/22 (2006.01) H01S 5/227 (2006.01)

Patent

CA 2342080

A self-mode-locking (SML) mid-infrared (5 and 8 µm) quantum cascade laser is formed that comprises both a relatively thin dielectric insulating layer (i.e., less than one-half micron in thickness) overlaid with an optically highly lossy (i.e., absorbing) layer, with a relatively long (approximately 3.5 mm) optical waveguide. Evidence of mode-locking is obtained from the measured optical spectra and corresponding interferograms, as well as from the rf spectra of the photocurrent detected with a fast quantum-well infrared photodetector. An estimate for the pulse width of approximately 3 psec is inferred from these data.

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