High-gain low-noise mid-infrared quantum cascade optical preamplifier for receiver

Optical preamplifier (OPA) in the mid-infrared can boost weak signals in systems such as lidars or optical wireless links to improve the receiver sensitivity. Quantum-cascade-based traveling-wave OPA with off-normal Bragg-grating (BG) coupled surface-emitting configuration have been developed with a...

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Veröffentlicht in:	IEEE photonics technology letters 2005-01, Vol.17 (1), p.13-15
Hauptverfasser:	Huanlin Zhang, Seetharaman, A., Johnson, P., Guipeng Luo, Le, H.Q.
Format:	Artikel
Sprache:	eng
Schlagworte:	Amplification Amplified spontaneous emission (ASE) filter Bandwidth Bragg-grating (BG) coupler Dynamic range Gain Laser radar mid-infrared (mid-IR) optical preamplifier (OPA) mid-infrared (mid-IR) receiver multispectral/wavelength-division multiplexing (WDM) Noise levels Optical filters Optical receivers Optical sensors Optical surface waves Preamplifiers quantum cascade (QC) Receivers Space applications Spontaneous emission surface emitting Wireless sensor networks
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