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O/E Converter
-
Visible wavelength O/E
(Max NA = 0.2, 0.25) -
Visible wavelength O/E
(Max NA = 0.5) -
Visible wavelength O/E
(Hi-Sensitivity) - NIR wavelength O/E
-
- O/E Selection Guide
- O/E Instruction
- O/E Dual-Balanced Detector
- O/E Dual-PD Amp for AFM
- JSTnews
- E/O LD Source
- E/O VCSEL Source
(670nm) - E/O VCSEL Source
(850nm) - 8xDFB-LD Laser
- HF level variable LD source
- Optical Coupler
- Optical Link System for Linac
- Optical Link for TTL
- Optical Link for NIM
- Optical link for analog Transceiver
(2KHz～3GHz) - TDM Opt-communication System(JAMSTEC)
- Waveform Analyzer DWA-xx
- Video line inserter
(for NTSC) - Bessel filter
*O/E Converter : SPA-4
(Max Core = 0.25mm, Max NA = 0.5, 300V/W@850nm, DC to 3GHz)
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Features: |
[1] Specifications
[2] Lens system
[3] Spectral Sensitivity (by calculation)
[4] Step Response and Frequency Characteristics (Example)
[5] Responding characteristics of the PD in a range of convertible frequency bandwidth
[6] options
[1] Specifications
Item \ Model Name |
SPA-4 |
| Reference Wavelength | 850nm |
| Receivable Wavelength Range | 380 to 950nm |
| Maximum Core Diameter | φ0.25mm |
| Acceptable NA. Range | 0.5 or less |
| Optical Input Connector (Standard) | FC receptacle |
| Photodetector Type | Si PIN PD |
| Active diameter of Photodetector | φ0.2mm |
| Sensitivity (Conversion Gain at Reference Wavelength) |
300V/W |
| Output Saturation Optical Input Power (Reference Wavelength) |
+1dBm |
| Convertible Frequency Bandwidth | DC to 3.0GHz |
| Output Noise Level | 1.8mVrms or less |
| Noise Equivalent Optical Power at Reference Wavelength | -22.4dBm or less |
| Electrical Output Connector (Standard) |
BNC plug |
| Output Impedance | 50 ohms |
| Output Offset Voltage | 0.5mV or less |
| DC Power Connector | LEMO 0S-4P |
| Supply Voltage | DC±15V |
| Supply Current | +150mA/-50mA |
| Dimensions [mm] | 103 x 44 x 21 |
| Weight |
Approx. 130g |
[2] Lens System
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SPA-4 Maximum Acceptable Diameter = 0.25mm |
[3] Spectral Sensitivity (by calculation)
SPA-4
Reference wavelength: 850nm
Maximum sensitivity: at 700nm
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Sensitivities vs wavelength
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[4] Step Response and Frequency Characteristics (Example)
SPA-4
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 |
| Step Response of SPA-4 Rise time: 143ps, Overshoot : 7.76% |
Frequency Characteristics of SPA-4 -3dB (Electrical) Frequency : Approx. 3.0GHz |
