Graviron PD Series O/E Converter User Manual

User’s Manual Please read this manual carefully before use Model
SPD-1 650
SPD-2 650

Introduction

Thank you for purchasing PD Series O/E Converter.
PD Series is Optical to Electric signal converter and has following feature.

• SPD-1 650：500mV/mW SPD-2 650：1000mV/mW （@ 650nm Wave Length, 50/125 GI Fiber）

• Wide Frequency Range
  DC～1200MHz Flatness ＋0.5 –3.0[dB electrical]

• Standard FC optical connector
  （Optional SC, F05, SMA, and ST connector are also available.）

• Standard BNC plug
  Able to connect directly to an oscilloscope, a spectrum analyzer etc.

• Able to get DC power from instruments through included Power Cable Assembly.=
  It is not guaranteed that power cable corresponds to all instruments.

• Able to use for instrumentation of lightwave products, optical links or other various applications.

Please read this user’s manual carefully and use it appropriately according to this manual, will make this product useful for development of light wave equipments, lightwave communication converter or other various applications.
◇Do not re-produce or re-publishing a part or all this manual without written permission from Graviton Inc.
◇This manual is subject to change without notice.
◇Please follow exporting regulations/rules in individual countries when exporting this product to other countries.

Contents of this package

The contents of this package are listed below.
Please contact immediately the shop you purchased this product, if there is any missing item s found.

1. O/E converter
2. Power Cable Assembly
3. Auxiliary Power Connector
4. User’s Manual(this manual)

◇Please keep original packaging, in case of re-shipping.

Front and rear panel view

1. Power switch
   This switch is for controlling power. Please on/off this switch after connecting power cable assembly to power connector(②) also keep this switch off when not in use.

2. Power input connector
   The power can be supplied from probe power connector that equipped with an instrument through the Power Cable Assembly. Or, alternately, external regulated power supply (not included) can be used through the Auxiliary Power Connector. Power supply voltage for PD series is±15[V]. Applying over and/or wrong polarity may cause permanent damage. Please refer the specification in page 7 for current consumption and page 5 for the detail of the power connection.

3. Optical signal input connector
   Light signal supplied through this FC connector is up to -1[dBm] for SPD-1 650 and up to -4[dBm] for SPD-2 650. Please do not apply 10dBm or higher light signal. It may cause permanent damage.

4. Electrical signal output connector
   50[Ω] input impedance with wide frequency range instruments is suitable to observe light signal. Recommended to use wider frequency range instruments to withdraw full spec.（DC～1200MHz SPD-1 650・SPD-2 650）

Set up

1. First of all, connect the O/E converter to input connector of an instrument. Conversion connector may be required, if the instrument has no BNC jack.
2. Confirm power switch on the O/E converter is off then connect Power Cable Assembly supplied. Other side of the Power Cable can be connected to the instrument, if probe power connector is equipped. Please refer page 6 for connecting external power supply, if the instrument has no probe power connector.
3. Turn on the power switch.
4. Connect fiber connector to the O/E converter and adjust voltage and sweep time of the instrument observe the light signal. Also make sure 50[Ω] impedance is selected on the instrument.

Connecting External Power Supply

1. An external power supply is necessary, if an instrument going to use has no probe power output. The requirements for the power supply are regulated±15[V] ±5[%]and capable of supplying more than 150[mA] current with low ripple and noise. And connect as following figure.
   Wrong power supply connection may cause permanent damage on the O/E converter. Pleasemake sure the connection as RED Cable for Positive terminal, Black Cable for GroundTerminal and Blue Cable for Negative Terminal.

2. Panel cutout size is as following to mount the Auxiliary Power Connecter on a panel, if necessary. Maximum allowable thickness of the panel is 5mm.

Specifications

PIN PD
Peak Sensitivity Wavelength| | 760nm|  760nm
Wavelength Range| More than 1/5
of peak sens.| 320nm ～
1000nm| 380nm ～
1000nm
Conversion Gain| 50GI Fiber| 500mV/mW
@650nm| 1000mV/mW
@650nm
Acceptable Core Diameter| Less than| 0.8mm| Less than
1.0mm
Acceptable Fiber NA| | Less than
0.2|  Less than
0.25
Frequency Bandwidth| -3dB electrical| DC～1.2GHz|  DC～1.2GHz
Maximum Optical Power for
Proper Signal Output| 400mV Out
@650nm| hkykrt| -4dBm
Wideband Noise Voltage| Up to 12.4GHz| Less than
1.3mVrms|  Less than
1.9mVrms
Noise Equivalent Power| 650nm| Less than
-26.0dBm|  Less than
-27.3dBm
Output Offset Voltage| No Input Signal| Within
+/- 0.5mV|  Within
+/- 0.5mV
Output Impedance| | 50ohms|  50ohms
Input Optical Connector| | FC|  FC
Output Coax Connector| | BNC Plug|  BNC Plug
Supply Voltage| | +/-15V DC| +/-15V DC
Supply Current| | +150mA/-50mA| +150mA/-50mA
Physical Dimension[mm] Weight[g]| | 93x44x21
110| 103x44x21
130
Operational Temperature +5[℃]～+35[℃]|  Storage temperature -20[℃]～+50[℃]

（This specifications are subject to change without notice.）

The Spectral Sensitivity curve of ＳＰＤ-１ ６５０、ＳＰＤ-２ ６５０
（Reference point is 1 at 650nm）

Contact to : Graviton Inc.
1-8-1 Kasuga-cho, IRUMA-SHI, SAITAMA, 358-0006 JAPAN
TEL：+81-4-2966-0816 FAX：+81-4-2966-0817
“GRAVITON” is trade mark of Graviton lnc. in Japan.
Copyright 2006 by Graviton Inc. All right reserved.
Never reproduce or republish without written permission.
No.20220831-01
Graviton INC
https://www.graviton.co.jp/index_En.html

References

• O/E,E/O Conversion technology : Graviton Incorporated

Read User Manual Online (PDF format)

Read User Manual Online (PDF format)  >>

Download This Manual (PDF format)

Download this manual  >>