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Power Sensors - 55037 High-Dynamic-Range Power Sensors

•Automatic seamless gain switching (30-µs transition times) so you don’t need to turn anyknobs to view your high-dynamic-range signal on an oscilloscope•Up to 25-kHz bandwidth—fast enough for most general lab experiments—and with >65-dBdynamic range•Logarithmic analog output spanning 70 dB so a single 14-bit A-to-D conversion gives<0.01-dB resolution over the full range

The Models 210X high-dynamic-range (HDR) powersensors are some of the fastest power sensors on the market today. With their high sensitivity and fast speeds, they are ideal for fiber alignment, fluores- cence experiments, and absorption spectroscopy— anywhere you need a wide dynamic range of up to six orders of magnitude in a single signal trace. Withtheir wide dynamic ranges, these HDR power sensorsare perfect for observing extremely narrow and deep spectral features.The logarithmic output is an analogvoltage with a range from –0.2 V to +3.75 V, corresponding to a sig- nal of –74 dBm to +5 dBm (40pw to 2.5mw). This enables the full range of the sensor to be viewed on an oscilloscope screen without having to change oscilloscope set- tings. Moreover, this output enables a single 14-bitA-to-D conversion to achieve <0.01-dB resolution over the full range. These HDR power sensors are temperature stabilized,resulting in highly accurateand stable measurements.And, unlike other power sensors that slow consider- ably when switching sensitivity ranges, they incorpo- rate a patented logarithmic-conversion circuit that achieves essentially seamless range switching. This results in a useful dynamic range of >65 dB even at full speeds—about 20-dB better than conventional power sensors. We’ve even provided three user-con- trollable speed settings so you can further extend the dynamic range if you don’t need the speed. The convenient bolt-together modular design and daisy- chained power connections make it easy to connect multiple units for multichannel, rack-mounted or bench-top systems.

Model 2103

U.S. Patent #7,092,644 Model #21012103 Wavelength Range 320–1060 nm 950–1630 nm Calibrated Wavelength Range -NA- 1520–1620 nm User-Selectable 3-dB Bandwidths 1, 5, 25 kHz 1, 5, 25 kHz Small-Signal Transition Time (0–100%) 30 µs 30 µs (25 kHz setting) Calibrated Accuracy (0 dBm, 23 °C) -NA- 0.1 dB Relative Accuracy (–61 to +4 dBm) 0.05 dB + 63 pW (from –59 dBm to +6 dBm) 0.05 dB + 40 pW (from –61 dBm to +4 dBm) rms Noise Floor –69 dBm (126 pW) –71 dBm (79 pW) Maximum Optical Power +6 dBm (4 mW) +4 dBm (2.5 mW) Output Type Analog, Logarithmic Analog, Logarithmic Output Reference Level (23 °C) 2.0 dBm=3.5 V 0dBm=3.5 ±0.005 V Output Slope 0.5 V/decade (50 mV/dB) 0.5 V/decade (50 mV/dB) Optical Input Free Space plus Optional Fiber Adapter Single-Mode FC (APC or PC compatible) Optical Return Loss -NA- –50 dB (APC) Connector Repeatability -NA- 0.01 dB Operating Temperature 15–35 ËšC 15–35 ËšC TemperatureDrift 0.005 dB/ËšC (typical) 0.005 dB/ËšC (typical) Electrical Output BNC BNC Power Requirements ±15 V, 75 mA (Model 0901 recommended) ±15 V, 75 mA (Model 0901 recommended) Model # 2101 2103 Price* $1,950 $1,950 Price, 3-yr Extended Warranty
† * $275 $275 Absolute power levels apply at peak responsivity @ ~920 nm.
† See our terms and conditions of sale for more details. Related Products: Swept-Wavelength Lasers (page 22) Power Supplies (page 138) Breakout Cable (page 139) Filter Holders and FC-Fiber Adapters (page 140) *For international prices add 10%.

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