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1990•IEEE Photonics Technology LettersRequires access

A cold-start 1.7 Gb/s FSK heterodyne detection system using single-electrode DFB lasers with no equalization

Yun Chur Chung, Liang D. Tzeng, Suet Yi Leung, ROBERT W. TKACH, ANDREW R. CHRAPLYVY, R.M. Derosier

Open publisher page 8 citations

Abstract

A cold-start, 1.7-Gb/s frequency-shift keying (FSK) heterodyne single-filter detection system using ordinary single-electrode distributed feedback (DFB) lasers is discussed. These lasers were frequency-locked to an atomic krypton line at 1.5224 mu m independently. Thus, this system can maintain a constant IF without an IF locking circuit and consequently does not require any IF acquisition circuitry for cold-start operation. The measured receiver sensitivity of this system was -41 db (1 mW) at an error rate of 10/sup -9/.>

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A cold-start, 1.7-Gb/s frequency-shift keying (FSK) heterodyne single-filter detection system using ordinary single-electrode distributed feedback (DFB) lasers is discussed. These lasers were frequency-locked to an atomic krypton line at 1.5224 mu m independently. Thus, this system can maintain a constant IF without an IF locking circuit and consequently does not require any IF acquisition circuitry for cold-start operation. The measured receiver sensitivity of this system was -41 db (1 mW) at an error rate of 10/sup -9/.>

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Available abstract

A cold-start, 1.7-Gb/s frequency-shift keying (FSK) heterodyne single-filter detection system using ordinary single-electrode distributed feedback (DFB) lasers is discussed. These lasers were frequency-locked to an atomic krypton line at 1.5224 mu m independently. Thus, this system can maintain a constant IF without an IF locking circuit and consequently does not require any IF acquisition circuitry for cold-start operation. The measured receiver sensitivity of this system was -41 db (1 mW) at an error rate of 10/sup -9/.>

Key concepts: Frequency-shift keying, Heterodyne (poetry), Laser, Heterodyne detection, Filter (signal processing), Sensitivity (control systems), Optics, Physics

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