Cat. No. SSCS1007E06
AUG/2002 HPK
Created in Japan (PDF)
SPECIFICATIONS
50 ps
Internal battery (W-10)
70% max. (with no condensation)
DIMENSIONAL OUTLINES (Unit: mm)
MEASUREMENT EXAMPLES
C4258
BAT TERY
Battery box
Output connector (SMA type)
43
77
47
16
20
21
10
16
20
15
20
21.5
M6 P1.0 D=6
(For exclusive stand)
4-M3 P0.5 D=6
1/4-20UNG D=6
1/4-20UNG D=6
43
M6 P1.0 D=6
(For exclusive stand)
4-M3 P0.5 D=6
Window
13
20
63
Weight: Approx. 300 g
Example showing measurement of relaxation oscillations from a
semiconductor laser in the 0.8
m band
Type mumber
Spectral response
Sensitivity
Active area
Rise time
Maximun input plue width
Low-frequency cutoff
Power source
Operating ambient temperature
Storage ambient temperature
Operating/storage ambient humidity
The C4258 series of picosecond photodetectors consists of pho-
todetectors featuring a light detector, a high-frequency circuit,and
a battery integrated in a single unit, as well as fast response. Opti-
cal phenomena in the picosecond region can be measured sim-
plyby irradiating the unit with an optical beam and connecting the
output to an external oscilloscope.
A high-speed MSM photodiode is used as the detector, enabling
a fast rise time , a large active area. For this reason, the C4258 is
ideal for pulse waveform observation of picosecond lasers such
as Ti: sapphire / YAG lasers, and semiconductor lasers for
DVDs and optical communications. In addition, by combining it
with a short-pulselight source, the C4258 can be used in applica-
tions such as measuring the transmission characteristics of opt-
ical fibers.
Four models are available. This lets the user select which ever
model is optimum for the wavelength of the pulse being meas-
ured.
C4258
C4258-01
C4258-02
C4258-03
0 to +40
C
10 to +50
C
100 kHz
0.4
m to 0.87
m
0.6
m to 1.65
m
0.32
m to 1.0
m
0.98
m to 1.65
m
1 mV/mW (at 0.6
m)
3 mV/mW (at 1.55
m)
5 mV/mW (at 0.85
m)
10 mV/mW (at 1.55
m)
0.2 mm
0.2 mm
0.2 mm
0.2 mm
0.4 mm
0.08 mm
50 ps
-
-
< 5 ns
< 5 ns
< 400 ps
< 400 ps
Homepage Address http://www.hamamatsu.com
5
Product and software package names noted in this documentation are trademarks or registered trademarks of their respective manufacturers.
q
Subject to local technical requirements and regulations, availability of products included in this promotional material may vary. Please consult with our sales office.
.
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Information furnished by HAMAMATSU is believed to be reliable. However, no responsibility is assumed for possible inaccuracies or omissions.
Specifications and external appearance are subject to change without notice..
2002 Hamamatsu Photonics K.K.
ISO 9001
Certificate: 09 105 79045
HAMAMATSU PHOTONICS K.K., Systems Division
812 Joko-cho, Hamamatsu City, 431-3196, Japan, Telephone: (81)53-431-0124, Fax: (81)53-435-1574, E-mail:export@sys.hpk.co.jp
U.S.A. and Canada: Hamamatsu Photonic Systems: 360 Foothill Road, Bridgewater, N.J. 08807-0910, U.S.A., Telephone: (1)908-231-1116, Fax: (1)908-231-0852, 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, U.K., Telephone: (44) 1707-294888, Fax: (44) 1707-325777, E-mail: info@hamamatsu.co.uk
North Europe: Hamamatsu Photonics Norden AB: Smidesvgen 12, SE-171-41 Solna, Sweden, Telephone: (46)8-509-031-00, Fax: (46)8-509-031-01, E-mail: info@hamamatsu.se
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Italy: Hamamatsu Photonics Italia S.R.L.: Strada della Mois, 1/E 20020 Arese (Milano), Italy, Telephone: (39)02-935 81 733, Fax: (39)02-935 81 741, E-mail: info@hamamatsu.it
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