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The HP 71400C combines a high-performance microwave spectrum analyzer wIth a wideband, sensitive optical receiver. This system measures modulated light on single-mode optical fibers from 100 kHz to 22 GHz. Optical modulation, noise, and average power are presented on a fully calibrated display. With the HP 11980A fiber-optic interferometer, the system measures linewidth. Together the lightwave signal analyzer, interferometer, and a gated source measure chIrp and FM characteristics of distributed-feedback (DFB) and other single-line lasers. This system is also a fully functional microwave spectrum analyzer wIth all the capabIlity of the HP 71210C. Because the lightwave signal analyzer is part of the HP 70000 modular measurement system, its measurement capabilities can be expanded easily. Specifications. Wavelength Range: 1200 to 1600 nm. Input return Loss: > 35 dB total, > 40 dB internal. Frequency range: 100 kHz to 22 GHz. Frequency Span: 1 Hz to 22 GHz plus 0 Hz. Maximum input average power: + 30 dBm (optical). Modulated power: + 15 dBm (optical). Average power accuracy (at 1300 or 1550 run): ± 0.65 dB (optical), ±0.5 nW, ± connector losses. Modulated power accuracy at 100 MHz (relative to average power): ±1.0 dB (optical). Frequency response (relative to 100 MHz): 100 kHz to 22 GHz, ± 1.0 dB (optical). Opt 850, 750 to 870 um Wavelength.
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