BDS-SMY Series

Small Size ps Diode Laser
  • Pulse Width Down to 50 ps
  • Repetition Rate 50 MHz (20 MHz Available on Request)
  • External Trigger via Synchronisation Input
  • Free Beam or Fiber Output
  • CW-Equivalent Power 0.3 mW to 0.5 mW
  • All Electronics Integrated
  • No External Driver Unit
  • Simple +12 V Supply
  • 40 x 40 x 120 mm3 or 40 x 70 x 120 mm3

 

BDS-SMY

Optical

Wavelength / nm

532, 561, 594

Repetition Rate

50 MHz (optional 20 MHz) and Other on Request

Pulse Width (FWHM, at Medium Power)

40 - 80 ps

Power Control Range (Power in Free Beam)

typ. 0 to 0.5 mW

Diameter of Laser Beam (Free Beam)

1 mm x 2 mm

Polarisation

Horizontal

Coupling Efficiency into Single-Mode Fiber (typ.)

50% to 70%

Trigger Output

Pulse Amplitude

-1.2 V (Peak) into 50 Ω

Pulse Width

1 ns

Output Impedance

50 Ω

Connector

SMA

Jitter between Trigger and Optical Pulse

< 10 ps

Synchronisation Input

Input Amplitude

TTL, +3.3 V to +5 V into 50 Ω

Duty Cycle

10 to 30 %; DC Equivalent must be < 2.5 V

Input Frequency

20 to 60 MHz

Switching from Internal Clock to Sync Input

Automatic, by Average Voltage at Sync Input Connector

Control Inputs

Frequency (20, 50, 80 MHz) and CW Operation

TTL / CMOS High

Laser ON / OFF

TTL / CMOS Low

Response of Optical Output to ON/OFF Signal

< 4 µs for Power 10 to 100 %

External Power Control

Analog Input, 0 to +10 V

Response Time of Optical Output to Power Control

< 4 µs for Power 10 to 100 %

Power Supply

Power Supply Voltage

+9 V to +15 V

Power Supply Current

200 mA to 500 mA

Mechanical Data

Dimensions (width x height x depth)

(40 x 70 x 120) mm

Mounting Thread

four M3 Holes

Heat Sink Requirements

< 2 °C / W 1)

Maximum Values

Power Supply Voltage

0 V to +15 V

Voltage at 'Laser ON/OFF' and 'Frequency' Inputs

-2 V to +7 V

Voltage at 'Laser Power' Input

-12 V to +12 V

Ambient Temperature

15 °C to +35 °C

(1) Laser must be mounted on heat sink. Case temperature must remain below 40 °C.

The bh TCSPC Handbook
7th edition, corrected and updated September 2017

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