36 research outputs found
LASER-GAS SPECTROPHONE MEASUREMENTS WITH A FIBER-OPTIC INTERFEROMETER
No full textUn interfĂ©romĂštre Ă fibre optique est utilisĂ© comme capteur acoustique dans un spectrophone Ă gaz. Une dĂ©tectivitĂ© de 1,6 x 10-7 cm-1·W/âHZ a Ă©tĂ© dĂ©montrĂ©e.A fiber-optic interferometer is the acoustic sensor in a gas spectrophone. A minimum detectable absorption capability of 1.6 x 10-7 cm-1·W/âHZ has been demonstrated
Simple Method for Quantifying Optical Feedback for Laser to Single-Mode Fiber Coupling Structures
No full textEffect of the external reflector position on the threshold current in complex-coupled DFB laser diodes
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ALPHA-TOCOPHEROL EFFECTS ON COLOR AND SENSORY CHARACTERISTICS OF GROUND PORK DURING RETAIL DISPLAY
No full textDistributed feedback gain-coupled lasers based on InGaAs quantum-wire arrays
No full textFabrication and characterization of a current-injected InGaAs-GaAs quantum-wire gain-coupled distributed feedback (DFB) laser operating at 77 K at a wavelength of 923 nm are presented, Threshold current densities in broad area lasers were measured to be as low as 160 A/cm(2), The side-mode suppression ratio at twice threshold is 35 dB. A 4-mu m rib waveguide device has a threshold of 14 mA, The patterning process for the second-order DFB grating fabricated with deep UV holography and wet-chemical etching is described
Phytase Supplementation and ReducedâPhosphorus Turkey Diets Reduce Phosphorus Loss in Runoff following Litter Application
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