Compare Model Drawings, CAD & Specs Availability Price
high speed fiber-optic detector model 1024
Fiber-Optic Detector, Time Domain, 500-1630 nm, 12 ps, FC Singlemode
4 Weeks
4 Weeks
Fiber-Optic Detector, Time Domain, 500-1630 nm, 18.5 ps, FC Singlemode
In Stock
In Stock
Fiber-Optic Detector, Time Domain, 850-1630 nm, 18.5 ps, FC Multimode



Minimal Ringing for Time-domain Applications

With clean, fast impulse responses with minimal ringing, these photodetectors are ideal for time-domain applications in high-speed digital fiber-optic communications systems including bit-error-rate (BER) testing, characterizing modulators and other components, and short-pulsed-laser measurements.

Impulse response of the Model 1024 measured with a 50-GHz scope and a 150-fs full-width-at-half-maximum input pulse at 1.06 µm.

High Sensitivity to Visible or NIR

Our Time Domain Photodetectors utilize a InGaAs diode providing wavelength coverage from 500 to 1630 nm for single mode and 850 to 1630 nm for multimode fiber.

Model 1024 Frequency Response

Model 1444 Frequency Response

Easy-to-use, Self-contained Module

These self-contained modules are powered by a user-replaceable 9-V battery. The photodiode bias circuit and battery are built into the RF-shielded case, reducing the risk of damage from excessive voltage or rough handling, and eliminating the need for expensive bias tees. All these photodetectors also come equipped with a DC-bias monitor that has a transimpedance gain of 1 mV/µA in a 50-kHz bandwidth.

Compatible With SDH and SONET Filters

Because of their optical-fiber input, these photodetectors can be connected directly to electronic instruments, eliminating the need for expensive and lossy high-frequency microwave cables. For your convenience, these photodetectors are internally terminated at 50 Ω, so they don’t require a 6-dB attenuator to achieve a good impedance match with SDH and SONET filters or when used with microwave filters.


  • Characterizing the frequency response of pulsed lasers, modulators & transmitters
  • Microwave generation - heterodyne experiments
  • Characterizing pulse propagation through dispersive optical systems