Title :
Gain, Noise Figure and Bandwidth-Limited Dynamic Range of a Low-Biased External Modulation Link
Author :
Roussell, Harold V. ; Regan, Michael D. ; Prince, Joelle L. ; Cox, Charles H. ; Chen, Jianxiao X. ; Burns, William K. ; Betts, Gary E. ; Ackerman, Edward I. ; Campbell, Joe C.
Author_Institution :
Photonic Syst., Inc., Billerica
Abstract :
We present a broad-bandwidth (1 -12 GHz) low-biased external modulation fiber-optic link without preamplifiers that has a gain of 6 dB-14 dB and a noise figure of < 7.S dB everywhere in this broad bandwidth, with a record low noise figure of only 3.4 dB at 2 GHz. The third-order distortion-limited spurious-free dynamic range (SFDK) of this link within any suboctavc portion of the 1-12 GHz range of operating frequencies is approximately 120 dBHz2/3 in a 1-Hz instantaneous receiver bandwidth. We describe the high-performance components in this link and discuss the extent to which their performance varies with frequency, and show which of these components´ frequency-dependent parameters affect which of the three figures of merit (gain, noise figure, and SFDR).
Keywords :
optical fibres; optical links; bandwidth-limited dynamic range; broad bandwidth; fiber-optic link; frequency 1 GHz to 12 GHz; frequency-dependent parameters; gain 6 dB to 14 dB; low-biased external modulation link; spurious-free dynamic range; third-order distortion; Bandwidth; Dynamic range; Electrodes; Electrooptic modulators; Frequency; Noise figure; Noise measurement; Optical fibers; Optical modulation; Performance gain;
Conference_Titel :
Microwave Photonics, 2007 IEEE International Topical Meeting on
Conference_Location :
Victoria, BC
Print_ISBN :
978-1-4244-1167-2
Electronic_ISBN :
978-1-4244-1168-9
DOI :
10.1109/MWP.2007.4378142
