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The JDSU SWS16101 Tunable Laser Source can be used as a stand-alone unit or as a component of the JDS Uniphase Swept Wavelength System (SWS). The cavity in the SWS16101 tunable laser source is self-aligned, a key feature for long-term stability. Extremely smooth scans over 100 nm are obtained in two seconds, with 1 pm resolution, for truly continuous tunability. Digitally controlled analog fine-tuning extends resolution beyond the 1 pm steps into the MHz domain. Operating range of 65 nm is free of any mode hop, ensuring a smooth and accurate wavelength sweep for reliable testing of narrowband components. Output power of more than 0 dBm over 65 nm and -3 dBm is guaranteed over the entire spectral range. Self-aligned optical layout, single-moving-part design, and an all-invar construction ensure long term stability. Keyboard and display are optimized for natural, unambiguous laboratory operation. All parameters can either be keyed in or adjusted using the multi-speed rotary control. Analog and digital modulation of the optical power from DC to 1 GHz provides multiple modulation possibilities. The cavity is designed to allow mode-locked operation of approximately 5 GHz. The 100 kHz line width can be degraded to 100 MHz when high coherence is a problem. Computer interfaces and analog inputs and outputs allow complete remote operation and ease of system integration. Specifications. Mode hop-free range (P = 3 dBm) in L-band: 1540 to 1630 nm. Absolute wavelength accuracy: ±0.2 nm. Tuning accuracy (on the mode hop-free range): ±0.02 nm. Tuning repeatability (on the mode hop-free range): ±0.005 nm. Wavelength setting resolution: 0.001 nm. Optical frequency fine tuning range: ±2 GHz. Power stability: ±0.01 dB, peak-to-peak in 1 hour. Wavelength stability (at constant temperature): 0.001 nm. Typical linewidth (FWHM) (on the mode hop-free range): 100 kHz. Linewidth with coherence control: >100 MHz. Side frequency suppression ratio: >35 dB.
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