Tuning characteristics of InAsSb continuous-wave lasers

Ultrabroad continuous-wave tuning of ceramic Cr:ZnSe and Cr:ZnS lasers

Using a single set of optics, we demonstrate ultrabroad tuning over more than 1300 nm from 1973 to 3349 nm in Cr:ZnSe and from 1962 to 3195 nm in Cr:ZnS at <10 GHz linewidth. ©2010 Optical Society of America OCIS codes: 140.3070 Infrared and far-infrared lasers, 140.3580 Lasers, solid-state Mid-infrared lasers, based on divalent chromium-doped II-VI materials have been known for over a decade n...

Photocoagulation delivery systems for continuous-wave lasers.

Continuous-wave Lasers in Polymer waveguides

Channel waveguides based on a polymer, 6fluorinated-dianhydride/epoxy, which is actively doped with a rare-earth-ion-doped complex, Nd(thenoyltrifluoroacetone)3 1,10-phenanthroline, have been fabricated. Photoluminescence peaks at 880 nm, 1060 nm, and 1330 nm have been experimentally observed. By optimization of the fabrication procedure of both, host material and optical structure, continuous-...

Linewidth and tuning characteristics of terahertz quantum cascade lasers.

We have measured the spectral linewidths of three continuous-wave quantum cascade lasers operating at terahertz frequencies by heterodyning the free-running quantum cascade laser with two far-infrared gas lasers. Beat notes are detected with a GaAs diode mixer and a microwave spectrum analyzer, permitting very precise frequency measurements and giving instantaneous linewidths of less than -30 k...

Current and frequency modulation characteristics for continuous-wave quantum cascade lasers at 9.06 μm.

We report the characteristics of current induced frequency modulation (FM) for two continuous-wave quantum cascade lasers (QCLs) at 9.06 μm. Both the frequency tuning rate and the phase shift between intensity modulation and FM are measured at different modulation frequencies from 10 Hz to 200 kHz. The frequency tuning rate of the QCLs depends on both the modulation frequency and amplitude. The...