Broadband Visible and IR versions
Single-mode or multimode fiber connectors
Compatible with our 20-GHz amplifiers
Internal microwave housing
These detectirs were designed to offer the ideal combination of high-speed performance up to 25 GHz and optical-input flexibility. They show flat response in both amplitude and phase and are optimized for frequency-domain applications. Every photodetector is individually tested and shipped with its own frequency-response curve.
| Model | Description | Availability | Price | Qty. | |
|---|---|---|---|---|---|
| 1414 | High Speed Photodetector, 500-1630 nm, 25 GHz, FC Singlemode Input | 3 Weeks | ¥41,051.37 | ADD |
| 1414-50 | High Speed Photodetector, 850-1630 nm, 25 GHz, 50.0 µm FC Multimode | Call | ¥44,661.19 | ADD |
| 1480-S | High Speed Photodetector, 400-870 nm, 15 GHz, FC 62.5 µm Multimode Input | Contact Sales | ||
| 1481-S | High Speed Photodetector, 400-870 nm, 25 GHz, FC Singlemode Input | Contact Sales | ||
| 1481-S-50 | High Speed Photodetector, 750-870 nm, 25 GHz, FC 50.0 µm Multimode Input | Call | ¥48,271.02 | ADD |
Models 1480 and 1481 (shown left) utilize a GaAs diode providing wavelength coverage from 400 to 870 nm. Model 1414 (shown right) utilizes an InGaAs diode providing coverage from 500 to1630 nm for singlemode and 850 to 1630 nm for multimode fiber.
Choose from FC single-mode or multimode connectors. With optical-fiber input, the photodiode module can be connected directly to an electronic instrument, eliminating the need for an expensive high-frequency microwave cable. Multimode versions have 50-µm-core fiber input and an internal GRIN lens for focusing onto the photodetector. In these MM versions, chromatic dispersion of the GRIN lens decreases the usable wavelength range.
By combining these photodetectors with our Model 1422 traveling-wave amplifiers, you can detect microwatt optical signals with 20-GHz bandwidth and minimal distortion. Model 1414 frequency responce is shown on the right.
An internal microwave housing suppresses noise, pick-up, and other artifacts. Moreover, to limit damage due to excessive voltage or mishandling, these photodiodes have damage-resistant bias circuits. All these photodetectors come equipped with a DC-bias monitor that has a transimpedance gain of 1 mV/µA and a 50-kHz bandwidth.
Characterizing the frequency response of pulsed lasers, modulators and transmitters
RIN measurements
Microwave generation - heterodyne experiments
| 1481-S | 1414 | |
|---|---|---|
| Wavelength Range (nm) | 400-870 | 500-1630 |
| Bandwidth (-3 dB) | 25/22 GHz (typ/min) | 25 GHz |
| Rise Time (ps) | 15 | 14 |
| Conversion Gain, Typical (V/W) | 11 | 17 |
| Responsivity (Peak) (A/W) | 0.7 | |
| Detector Diameter (mm) | 0.021 | |
| Detector Material | GaAs | InGaAs |
| Output Impedance (Ω) | 50 | 50 |
| NEP (pW/√Hz) | 45 | 30 |
| Bandwidth, DC Bias Monitor (kHz) | 50 | 50 |
| DC Bias Monitor Transimpedance Gain () | 1 V/mA | 1 V/mA |
| Saturation Power CW | >2 mW | 2 |
| Optical Input | Singlemode FC | Singlemode FC |
| Output Connector | Wiltron® K Connector | Wiltron® K Connector |
| Power Requirements | ±15 V, <200 mA | internal 9-V battery |
| 1481-S-50 | 1414-50 | 1480-S | |
|---|---|---|---|
| Wavelength Range (nm) | 750-870 | 850-1630 | 400-870 |
| Bandwidth (-3 dB) | 25/22 GHz (typ/min) | 25 GHz | 15/13 GHz (typ/min) |
| Rise Time (ps) | 15 | 14 | 25 |
| Conversion Gain, Typical (V/W) | 9 | 14 | 11 |
| Responsivity (Peak) () | 0.6 | ||
| Detector Diameter () | 0.021 | ||
| Detector Material | GaAs | InGaAs | GaAs |
| Output Impedance (Ω) | 50 | 50 | 50 |
| NEP (pW/√Hz) | 45 | 40 | 45 |
| Bandwidth, DC Bias Monitor (kHz) | 50 | 50 | 50 |
| DC Bias Monitor Transimpedance Gain | 1 V/mA | 1 V/mA | 1 V/mA |
| Saturation Power CW () | >2 mW | 2 | >2 mW |
| Optical Input | Multimode FC | Multimode FC | Mulitmode FC |
| Output Connector | Wiltron® K Connector | Wiltron® K Connector | Wiltron® K Connector |
| Power Requirements | ±15 V, <200 mA | internal 9-V battery | ±15 V, <200 mA |
