Name: Low noise butterfly laser diode controller
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Low noise butterfly laser diode controller

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Koheron CTL101 is a low noise current driver with modulation combined with a temperature controller. It is designed to drive narrow-linewidth laser diodes in butterfly package. The CTL101 fits in a 75 mm x 75 mm square, uses a single 5 V supply, and can operate between 0 and 50°C. The CTL101 is conduction-cooled. It comes with an aluminum base plate and a zero insertion force socket for easy mounting.

Current driver	B-100	B-200	B-400	B-800
Laser current	0 - 110 mA	0 - 220 mA	0 - 440 mA	0 - 880 mA
Compliance voltage (5V supply)	2.2 V	2.2 V	2.2 V	2.2 V
Compliance voltage (6V supply)	3.2 V	3.2 V	3.2 V	3.2 V
RMS noise (10 Hz - 1 MHz) L/M gain	120 nArms	200 nArms	390 nArms	810 nArms
RMS noise (10 Hz - 1 MHz) H gain	150 nArms	280 nArms	560 nArms	1160 nArms
Current noise density (1 kHz)	110 pA/√Hz	220 pA/√Hz	420 pA/√Hz	820 pA/√Hz
Current limit (H / L)	125 / 60 mA	250 / 150 mA	500 / 300 mA	1000 / 600 mA
Modulation gains	0.5 mA/V, 5 mA/V, 50 mA/V	1 mA/V, 10 mA/V, 100 mA/V	2 mA/V, 20 mA/V, 200 mA/V	4 mA/V, 40 mA/V, 400 mA/V
3 dB modulation bandwidth	12 MHz	12 MHz	12 MHz	12 MHz
Temperature coefficient	15 ppm/°C	15 ppm/°C	15 ppm/°C	15 ppm/°C
Slow start (90 % setpoint)	250 ms	250 ms	250 ms	250 ms
AC modulation cutoff frequency	1.5 MHz	1.5 MHz	1.5 MHz	1.5 MHz
TEC controller
Maximum current	0.8 A	1.2 A	1.2 A	1.2 A
Temperature range (10 K thermistor)	10 °C to 35 °C	10 °C to 35 °C	10 °C to 35 °C	10 °C to 35 °C
Compliance voltage	±3 V	±3 V	±3 V	±3 V
Temperature stability	0.0015 °C/°C	0.0015 °C/°C	0.0015 °C/°C	0.0015 °C/°C
Laser power monitor
Photodiode current	0 - 1 mA	0 - 1 mA	0 - 1 mA	0 - 1 mA
Gain	3.9 V/mA	3.9 V/mA	3.9 V/mA	3.9 V/mA
Frequency range	DC - 20 MHz	DC - 20 MHz	DC - 20 MHz	DC - 20 MHz
Other
Outside Dimensions	75 mm x 85 mm x 27 mm	75 mm x 85 mm x 27 mm	75 mm x 85 mm x 27 mm	75 mm x 85 mm x 27 mm
Weight	103 g	103 g	103 g	103 g
Supply voltage	4.9 V to 6.5 V	4.9 V to 6.5 V	4.9 V to 6.5 V	4.9 V to 6.5 V
Operating temperature	0 °C - 60 °C	0 °C - 60 °C	0 °C - 60 °C	0 °C - 50 °C
Compatible lasers	Floating diodes	Floating diodes	Floating diodes	Floating diodes

Current driver	B-100	B-200	B-400	B-800
Laser current	0 - 110 mA	0 - 220 mA	0 - 440 mA	0 - 880 mA
Compliance voltage (5V supply)	2.2 V	2.2 V	2.2 V	2.2 V
Compliance voltage (6V supply)	3.2 V	3.2 V	3.2 V	3.2 V
RMS noise (10 Hz - 1 MHz) L/M gain	120 nArms	200 nArms	390 nArms	810 nArms
RMS noise (10 Hz - 1 MHz) H gain	150 nArms	280 nArms	560 nArms	1160 nArms
Current noise density (1 kHz)	110 pA/√Hz	220 pA/√Hz	420 pA/√Hz	820 pA/√Hz
Current limit (H / L)	125 / 60 mA	250 / 150 mA	500 / 300 mA	1000 / 600 mA
Modulation gains	0.5 mA/V, 5 mA/V, 50 mA/V	1 mA/V, 10 mA/V, 100 mA/V	2 mA/V, 20 mA/V, 200 mA/V	4 mA/V, 40 mA/V, 400 mA/V
3 dB modulation bandwidth	12 MHz	12 MHz	12 MHz	12 MHz
Temperature coefficient	15 ppm/°C	15 ppm/°C	15 ppm/°C	15 ppm/°C
Slow start (90 % setpoint)	250 ms	250 ms	250 ms	250 ms
AC modulation cutoff frequency	1.5 MHz	1.5 MHz	1.5 MHz	1.5 MHz
TEC controller
Maximum current	0.8 A	1.2 A	1.2 A	1.2 A
Temperature range (10 K thermistor)	10 °C to 35 °C	10 °C to 35 °C	10 °C to 35 °C	10 °C to 35 °C
Compliance voltage	±3 V	±3 V	±3 V	±3 V
Temperature stability	0.0015 °C/°C	0.0015 °C/°C	0.0015 °C/°C	0.0015 °C/°C
Laser power monitor
Photodiode current	0 - 1 mA	0 - 1 mA	0 - 1 mA	0 - 1 mA
Gain	3.9 V/mA	3.9 V/mA	3.9 V/mA	3.9 V/mA
Frequency range	DC - 20 MHz	DC - 20 MHz	DC - 20 MHz	DC - 20 MHz
Other
Outside Dimensions	75 mm x 85 mm x 27 mm	75 mm x 85 mm x 27 mm	75 mm x 85 mm x 27 mm	75 mm x 85 mm x 27 mm
Weight	103 g	103 g	103 g	103 g
Supply voltage	4.9 V to 6.5 V	4.9 V to 6.5 V	4.9 V to 6.5 V	4.9 V to 6.5 V
Operating temperature	0 °C - 60 °C	0 °C - 60 °C	0 °C - 60 °C	0 °C - 50 °C
Compatible lasers	Floating diodes	Floating diodes	Floating diodes	Floating diodes