These photoreceivers are ideal for applications that require high sensitivity, high speed, and clean responses. In particular, their clean responses and 34-ps rise times make them especially well-suited for time-domain characterization of 10-Gbit/s components. The high gain and gradual, well-behaved roll-off of the frequency response also make them useful for frequency-domain measurements.
To simplify your test setup, we’ve redesigned these photoreceivers so they give response all the way down to DC. At the touch of a switch, you can still select the traditional AC-coupled output with a 10-kHz cutoff. We are now offering both single-mode and multimode fiber-coupled versions. Models 1544-B-50 and 1554-B-50 have 50/125-µm-core fiber and Model 1580-B comes standard with a 62.5-µm-core fiber. All versions use Wiltron® K connectors for the electrical output.
These photoreceivers provide an inverting gain; keep in mind that the negative conversion gain inverts the signal from the photodiode (to view a positive output, use the inverting feature on your oscilloscope). Every photoreceiver comes equipped with a convenient DC-bias monitor that has a transimpedance gain of 1 mV/µA and a bandwidth of 50 kHz.
Each photoreceiver is individually tested and shipped with its own impulse and frequency response plots.
Applications
- Characterizing 10-Gbit/s components, including BER testing and generating eye diagrams
- Characterizing the frequency and/or time responses of pulsed lasers, modulators, transmitters, and other lightwave components
- RIN measurements
- Heterodyne experiments
- Characterizing pulse propagation through dispersive optical systems
- Precision timing/triggering
Models 15X4-B typical pulse and step response (inverted). NOTE: Pulse response measured on a 20-GHz oscilloscope with a 100-fs optical pulse. Step response calculated from pulse response.
Typical responsivity of Model 1580-B .
Typical frequency response of Model 1580-B .
Typical responsivity for Model 1544-B and Model 1554-B .
Typical frequency response for Model 1544-B and Model 1554-B .
10-Gbit/s data generated with a Model 1544-B photoreceiver. Both the photoreceiver and the transmitter contribute to the observed transition times. Because the Models 15XX-B are 50% faster than typical 10-Gbit/s photoreceivers, a more accurate measurement of the transmitter response is achieved.
