O/E Converter-Graviton

O/E Converter

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SPD-2

- ** Japanese version **
Visible wavelength O/E
(Max NA = 0.2, 0.25)
Visible wavelength O/E
(Max NA = 0.5)
- SPA-2_650nm
- SPA-3
- SPA-4
Visible wavelength O/E
(Hi-Sensitivity)
- SPS-1
- SPS-2
NIR wavelength O/E
- LPD-1
- LPD-2
- LPS-1
- LPS-2

*O/E Converter : SPD-2_650nm and SPD-1_850nm
(Max Core = 1.0mm, Max NA = 0.25, 1000V/W@658nm or 850nm, DC to 1.2GHz)

Features:
* For High Speed POF:φ1mm (Max.core:φ1.0mm and Max.NA:0.25)
* High sensitivity: 1000V/W
* Wide range of receivable wavelength: 400nm to 1000nm
* Wide range of Convertible Frequency Bandwidth: DC to 1.2GHz
* Low output offset voltage: 0.5mV or less
* Compact: 103mm x 44mm x 21mm
* Lightweight: 130g
* Equips a silicon PIN Photodiode configured with unique lens system
* Reasonable price:JPY 290,000 for direct sales
　(Excluded tax and shipping cost)

[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	SPD-2_650nm	SPD-2_850nm
Reference Wavelength	658nm	850nm
Receivable Wavelength Range	400 to 1000nm	400 to 1000nm
Maximum Core Diameter	φ1.0mm	φ1.0mm
Acceptable NA. Range	0.25 or less	0.25 or less
Optical Input Connector (Standard)	FC receptacle	FC receptacle
Photodetector Type	Si PIN PD	Si PIN PD
Active diameter of Photodetector	φ0.4mm	φ0.4mm
Sensitivity (Conversion Gain at Reference Wavelength)	1,000V/W	1,000V/W
Output Saturation Optical Input Power (Reference Wavelength)	-4dBm	-4dBm
Convertible Frequency Bandwidth	DC to 1.2GHz	DC to 1.2GHz
Output Noise Level	1.9mVrms or less	1.9mVrms or less
Noise Equivalent Optical Power at Reference Wavelength	-27.3dBm or less	-27.3dBm or less
Electrical Output Connector (Standard)	BNC plug	BNC plug
Output Impedance	50 ohms	50 ohms
Output Offset Voltage	0.5mV or less	0.5mV or less
DC Power Connector	LEMO 0S-4P	LEMO 0S-4P
Supply Voltage	DC±15V	DC±15V
Supply Current	+150mA/-50mA	+150mA/-50mA
Dimensions [mm]	103 x 44 x 21	103 x 44 x 21
Weight	Approx. 130g	Approx. 130g

[2] Lens System

SPD-2

Maximum core diameter of POF: 1.0mm
Maximum NA: 0.25
Diameter of Photo Diode: 0.4mm
Optical Magnification: 0.4

[3] Spectral Sensitivity (by calculation)

SPD-2_650nm

Reference wavelength: 658nm

Maximum sensitivity: at 770nm

Sensitivities vs wavelength

Sensitivity	Wavelength
296 V/W	400nm
535 V/W	500nm
829 V/W	600nm
1090 V/W	700nm
1125 V/W	800nm
790 V/W	900nm

SPD-2_850nm

Reference wavelength: 850nm

Maximum sensitivity: at 770nm

Sensitivities vs wavelength

Sensitivity	Wavelength
298 V/W	400nm
539 V/W	500nm
834 V/W	600nm
1098 V/W	700nm
1133 V/W	800nm
795 V/W	900nm

[4] Step Response and Frequency Characteristics (Example)

SPD-2_650nm



Step Response of SPD-2_650nm Rise time: 273.3ps, Overshoot : 1.60%	Frequency Characteristics of SPD-2_650nm -3dB (Electrical) Frequency : Approx. 1.2GHz

SPD-1_850nm



Step Response of SPD-2_850nm Rise time: 311ps, Overshoot : 0.29%	Frequency Characteristics of SPD-2_850nm -3dB (Electrical) Frequency : Approx. 1.2GHz

O/E Converter

*O/E Converter : SPD-2_650nm and SPD-1_850nm (Max Core = 1.0mm, Max NA = 0.25, 1000V/W@658nm or 850nm, DC to 1.2GHz)