Microwave Photonics

Seeds, A.J.; Williams, K.J.

doi:10.1109/jlt.2006.885787

Cited by 840 publications

(318 citation statements)

References 143 publications

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“…Analogue photonic signal processing is gaining its momentum in several fields traditionally dominated by electronics, including analogue-todigital conversion (ADC) 1 , microwave and terahertz-wave generation 2,3 , radio-over-fiber (ROF) 4 and all-optical regeneration 5,6 . The reasons for this migration are well known, centered around the large bandwidth*distance products achievable, as well as the greater measurement fidelity attainable when performing functions such as sampling alloptically 1 .…”

Section: Introductionmentioning

confidence: 99%

Homodyne Operation of a Phase-only Optical Amplifier

Kakande

Parmigiani

Slavı́k

et al. 2012

European Conference and Exhibition on Optical Communication

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Section: Introductionmentioning

confidence: 99%

Homodyne Operation of a Phase-only Optical Amplifier

Kakande

Parmigiani

Slavı́k

et al. 2012

European Conference and Exhibition on Optical Communication

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“…This is highly desirable for recovery of carrier signals in coherent optical communications [5]. OPLLs also find applications in microwave photonics [3] and in the creation of spectrally pure signals in the mm-wave and THz frequency ranges via photomixing [6,7].…”

Section: Introductionmentioning

confidence: 99%

Monolithically integrated heterodyne optical phase-lock loop with RF XOR phase detector

Steed¹,

Pozzi²,

Fice³

et al. 2011

Opt. Express

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Abstract:We present results for an heterodyne optical phase-lock loop (OPLL), monolithically integrated on InP with external phase detector and loop filter, which phase locks the integrated laser to an external source, for offset frequencies tuneable between 0.6 GHz and 6.1 GHz. The integrated semiconductor laser emits at 1553 nm with 1.1 MHz linewidth, while the external laser has a linewidth less than 150 kHz. To achieve high quality phase locking with lasers of these linewidths, the loop delay has been made less than 1.8 ns. Monolithic integration reduces the optical path delay between the laser and photodiode to less than 20 ps. The electronic part of the OPLL was implemented using a custom-designed feedback circuit with a propagation delay of ~1 ns and an open-loop bandwidth greater than 1 GHz. The heterodyne signal between the locked slave laser and master laser has phase noise below 90 dBc/Hz for frequency offsets greater than 20 kHz and a phase error variance in 10 GHz bandwidth of 0.04 rad 2 .

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“…Radio-frequency (RF) photonic filters have received sustained research attention due to their potential for broad band tuning, reconfigurability, immunity to electromagnetic interference, and compatibility with remote fiber optic connections [1][2][3][4][5]. High-repetition-rate optical frequency combs have received great interest for many applications, including optical arbitrary waveform generation [6], coherent communication [7], short pulse generation [8][9][10], and recently microwave signal processing [4,5,11].…”

mentioning

confidence: 99%