Topic
Injection locking
About: Injection locking is a research topic. Over the lifetime, 4567 publications have been published within this topic receiving 60942 citations.
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TL;DR: In this article, a 17 GHz RF receiver, consisting of a low-noise amplifier and doubly balanced mixers coupled by a monolithic 3.7:1 stepdown transformer, realizes over 75 dB of image rejection in a production 100 GHz f/sub T/SiGe BiCMOS technology.
Abstract: A 17-GHz RF receiver, consisting of a low-noise amplifier (LNA) and doubly balanced mixers coupled by a monolithic 3.7:1 step-down transformer, realizes over 75 dB of image rejection in a production 100-GHz f/sub T/ SiGe BiCMOS technology. A new coupling transformer winding improves the magnetic coupling coefficient by more than 20% compared to conventional designs, which reduces parasitic effects and increases the overall efficiency of the LNA/mixer combination. Quadrature LO signals with electronically tunable phase are generated by a subharmonically injection-locked oscillator. The measured receiver IIP3 is -5.1 dBm with 17.3-dB conversion gain and 6.5-dB noise figure (SSB 50 /spl Omega/) at 17.2 GHz. The 1.9/spl times/1.0 mm/sup 2/ IC consumes 62.5 mW from a 2.2-V supply.
25 citations
Patent•
16 Dec 1992
TL;DR: In this article, an injection seeded, single frequency ring laser source is presented, where stabilization and single frequency control are accomplished by measuring the intensity or power of the portion of the high power laser beam generated in the ring slave laser and which is directed to return to the seed laser.
Abstract: An injection seeded, single frequency ring laser source is presented wherein stabilization and single frequency control is accomplished by measuring the intensity or power of the portion of the high power laser beam generated in the ring slave laser and which is directed to return to the seed laser. When the intensity of the return beam falls below a preset threshold level, the in-phase operation of the laser system has been established and high energy single frequency pulses are generated and emitted.
25 citations
TL;DR: In this paper, the same authors examined the detuning equations for a semiconductor laser subject to injection and showed that a pulsating intensity regime may coexist with a stable steady state.
25 citations
TL;DR: In this paper, the design and operation of a single-frequency 18 W Nd: YAG laser, injection-locked to a diode-pumped Nd-YAG laser was described.
25 citations
TL;DR: In this paper, the suppression of second harmonic distortion in directly modulated semiconductor distributed feedback lasers by optical injection locking has been experimentally demonstrated, and it has been observed over a wide range of bias currents and modulation frequencies.
Abstract: The suppression of second harmonic distortion in directly modulated semiconductor distributed feedback lasers by optical injection locking has been experimentally demonstrated. Reduction of second harmonic distortion by more than 10 dB has been observed over a wide range of bias currents and modulation frequencies.
25 citations