Laser induced microwave oscillator under the influence of interference

Abstract

An optoelectronic oscillator (OEO) under the influence of a weak interference has been investigated. The system equation of the OEO under the influence of interference has been derived. A novel technique for calculating the lock range of the oscillator using the harmonic balance method in presence of interference has been demonstrated. Theoretical analysis coupled with experimental results has been presented.

A study on the effect of synchronization by an angle modulated signal in a single loop optoelectronic oscillator

“…In contradistinction to the previous works [3][4][5][6][7][8]14,15], this paper achieves the following: (i) system equation of the single loop optoelectronic oscillator under the influence of angle modulated synchronization has been derived, (ii) the locking range of the OEO has been evaluated and (iii) the FM-AM conversion of the synchronized OEO has been reported.…”

Study on synchronisation capability enhancement of optoelectronic oscillator using dynamic control bandpass filter

“…When the loop gain is larger than the loss and the round-trip phase shift of signal is an integer multiple of 2π, the OEO can generate a certain frequency determined by the centre frequency of the bandpass filter (BPF) and oscillation modes which depends upon the amount delay introduced by the optical fibre [7][8][9][10]. In the last two decades, several works have been reported on OEO either for advancement or behavioural pattern studies under different circumstances [11][12][13][14][15][16][17][18]. For a single frequency of oscillation in an OEO, a sharp cut off BPF is required so that only a single mode can persist in the system.…”