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 paper, a 25J, 50 ns laser pumped by opposed electron beams is described, and experiments with this device demonstrated a 9% intrinsic laser efficiency at power deposition rates of about 1 MW/cm3.
Abstract: A 25‐J, 50‐ns laser pumped by opposed electron beams is described. Experiments with this device demonstrated a 9% intrinsic laser efficiency at power deposition rates of about 1 MW/cm3. Parasitic control and narrowband output required for Raman‐compression experiments were demonstrated by injection locking the laser. Experiments showing an angle‐encoded extraction of energy from the medium (pulse stacking) with three pulses using a high‐gain three‐pass amplifier configuration are also described. The device utilizes triggering schemes of very low jitter suitable for synchronization to other components for optical pulse‐compression experiments.
26 citations
TL;DR: In this paper, a holographic grating at grazing angle of incidence was used to achieve tunable, narrow bandwidth operation of a XeCl oscillator for injection locking of a ring amplifier.
Abstract: A holographic grating at grazing angle of incidence was used to achieve tunable, narrow bandwidth (0.005 nm) operation of a XeCl oscillator for injection locking of a ring amplifier. The amplifier’s narrow bandwidth output energy was constant and equal to the untuned, broadband output (∼15 mJ) in regions where injection locking was achieved. Scanning was provided by use of a stepping motor‐driven differential micrometer on the tuning mirror. This system was used to produce a laser excitation spectrum of hydroxyl radicals (OH) in a flame.
26 citations
Patent•
22 Dec 1995
TL;DR: In this paper, a monolithic device is shown having a number of phase-locked loops (PLLs) constructed thereon, at least one of the PLLs is constructed as a multiple loop having an output of one PLL loop tied back to the feedback path of the other loop of the pair.
Abstract: A monolithic device is shown having a number of phase locked loops (PLLs) constructed thereon. At least one of the PLLs is constructed as a multiple loop having an output of one PLL loop tied back to the feedback path of the other loop of the pair. In this manner, tight resolution can be obtained in one loop while the bandwidth of that loop is coarse. The bandwidth of the second loop is tight, thereby giving good resolution to the first loop while still avoiding the problems inherent with noise injection locking from other PLLs on the same device.
26 citations
TL;DR: An efficient locking technique based on optical feedback is demonstrated to suppress jitter on the rf beat note between the two modes of a dual-frequency Yb:Er glass laser.
Abstract: An efficient locking technique based on optical feedback is demonstrated to suppress jitter on the rf beat note between the two modes of a dual-frequency Yb:Er glass laser. The method consists of a self-injection process in which one selected mode serves as a master oscillator to lock and stabilize the second mode via a frequency-shifted optical feedback. The beat note adjusted near 170 MHz was stabilized with an accuracy of 250 mHz using an optical feedback loop with a double pass through an acousto-optic modulator. The beating note can be tuned over 300 kHz by controlling the reference oscillator. The extensions and limitations of the technique are discussed.
26 citations
TL;DR: In this paper, the authors used injection locking to switch between transverse electric (TE) and transverse magnetic (TM) polarization states in the output from a semiconductor laser.
Abstract: Switching between transverse electric (TE) and transverse magnetic (TM) polarization states in the output from a semiconductor laser is experimentally obtained through injection locking from an external TM polarized radiation Switching, which is connected to the loss reduction of the TM modes caused by the injection‐locking mechanism, is faster than a few nanoseconds, the resolution limit of our apparatus
25 citations