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ULTRAFAST MSM PHOTODETECTORS
G4176 SERIES (GaAs)
G7096 SERIES (InGaAs)
Ultrafast response of several tens picosecond
ULTRAFAST MSM PHOTODETECTORS G4176 SERIES (GaAs) , G7096 SERIES (InGaAs)
Cat. No. LPRD1022E01
JAN 2003 IP
http://www.hamamatsu.com
PRELIMINARY DATA
Information furnished by HAMAMATSU is believed to be reliable. However, no responsibility is assumed for possible inaccuracies or omissions.
Specifications are subject to change without notice. No patent rights are granted to any of the circuits described herein. '2003 Hamamatsu Photonics K.K.
HAMAMATSU PHOTONICS K.K., Laser Group, Sales Dept.
5000, Hirakuchi, Hamakita City, Shizuoka, 434-8601, Japan,
Telephone: (81)53-584-0227, Fax: (81)53-584-0228, E-mail: laser-g@lsr.hpk.co.jp
G4176
G7096
G4176-01
G7096-01
FEATURES
Ultrafast response
G4176 : tr , tf = 30 ps (Typ.)
G7096 : tr = 40 ps (Typ.)
Low dark current
G4176 : 100 pA (Ta=25
°C)
Large photosensitive area
200
m
APPLICATIONS
Optical high-speed waveform measurements
Optical communications
DESCRIPTION
HAMAMATSU realized MSM (Metal-Semiconductor-Metal) Photodetectors having ultrafast responses.
The GaAs MSM Photodetector G4176 features 30ps response time for both rise & fall while keeping a low dark
current (100pA at Ta=25
°C). The rise time of the InGaAs MSM Photodetector G7096 is 40ps.
Symmetrical and interdigital Schottky contacts are fabricated at the sensitive area, whose size can be larger than
other kinds of fast response photodetectors. This makes easier to set up with optics. Therefore, MSM
Photodetectors are suited for measurements of optical high-speed waveform and optical communications.
There is no electrical polarity in MSM Photodetectors, that is, both polarities of a bias voltage are available, and
the polarity of an output signal depends on its connection.
Two kinds of packages are prepared for each MSM Photodetector. The package of G4176 & G7096 is a coaxial
metal type (patent : Japan 2070802), which is easy to connect with an electrical SMA-connector. That of G4176-
01 & G7096-01 is a TO-18, which is very common.
An optical fiber or connector input types are available as a custom option. Contact your local representative for
more information.
1/4-36UNS-2B
9.6
2.0
3.0
φ7.9
10
φ8.2
2.3
12
min.
3.6
1.2
φ5.4
φ4.7
BIAS
/ OUTPUT*
OUTPUT
/ BIAS*
φ0.45LEAD
G4176
G7096
G4176-01
G7096-01
BIAS-TEE
Optical Input
Electric Output
Power Supply
+ (or -)
- (or +)
BIAS
CASE
G4176
(G7096)
G4176
G7096
G4176-01
G7096-01
Output
U.S.A.: Hamamatsu Corporation:360 Foothill Road, P.O. BOX 6910, Bridgewater, N.J. 08807-0910, U.S.A.Telephone: (1)908-231-0960, Fax: (1)908-231-1218 E-mail: usa@hamamatsu.com
Germany: Hamamatsu Photonics Deutschland GmbH: Arzbergerstr. 10, D-82211 Herrsching am Ammersee, Germany, Telephone: (49)8152-375-0, Fax: (49)8152-2658, E-mail: info@hamamatsu.de
France: Hamamatsu Photonics France S.A.R.L.: 8, Rue du Saule Trapu, Parc du Moulin de Massy, 91882 Massy Cedex, France, Telephone: 33(1) 69 53 71 00, Fax: 33(1) 69 53 71 10, E-mail: infos@hamamatsu.fr
United Kingdom: Hamamatsu Photonics UK Limited: 2 Howard Court, 10 Tewin Road, Welwyn Garden City, Hertfordshire AL7 1BW, United Kingdom, Telephone: (44)1707-294888, Fax: (44)1707-325777, E-mail: info@hamamatsu.co.uk
North Europe: Hamamatsu Photonics Norden AB: Smidesv gen 12, SE-171-41 Solna, Sweden, Telephone: (46)8-509-031-00, Fax: (46)8-509-031-01, E-mail: info@hamamatsu.se
Italy: Hamamatsu Photonics Italia S.R.L.: Strada della Moia, 1/E, 20020 Arese, (Milano), Italy, Telephone: (39)02-935 81 733, Fax: (39)02-935 81 741, E-mail: info@hamamatsu.it
DIMENSIONAL OUTLINES (Unit : mm)
(BOTTOM VIEW)
SENSITIVE
SURFACE
CASE
CHIP
OUTPUT/BIAS*
*Both polarities of the bias voltage are available.
(BOTTOM VIEW)
CASE
CHIP
SENSITIVE
SURFACE
+ (or -)
- (or +)
G4176-01
(G7096-01)
Optical Input
Electric Output
Power Supply
Coaxial Connector
Case Lead
10 k
100
10 nF
CONNECTION EXAMPLES
BIAS