105
Tunable Laser Sources
How to Set the Power
The Analog Output
If there is an output BNC connector on the front panel of your
Tunable Laser module, you can output a DC voltage level that is
proportional to the laser output power. The relationship between
this voltage level and the output power is not calibrated.
A t t e n u a t o r
If your Tunable Laser module has an attenuator installed, the Analog Output
signal depends on the power mode you have chosen. The voltage level is
proportional to the optical power produced by the laser diode (not the optical
output power).
In <M
ANUAL
A
TT
.> Mode, the relationship between the power value, [P],
and the voltage level is only proportional to the output power if the
attenuation remains constant. The attenuator adds a constant offset to the
voltage level.
In <A
UTOMATIC
> Attenuation Mode, the laser output power, and therefore
the Analog Output signal, is not linearly proportional to the output power.
This is because the actual output optical power is derived by the optimum
combination of the laser output power and the attenuation.
Figure 5-5
Output Power and the Analog Output in <M
ANUAL
A
TT
.> Mode
Voltage, V
[P], mW
5 V
20 mW
2 mW
[A
TTEN
.] = 0 dB
[A
TTEN
.] = 10 dB
Содержание 8163A Series
Страница 1: ...HP 8163A Lightwave Multimeter HP 8164A Lightwave Measurement System User s Guide ...
Страница 3: ...HP 8163A Lightwave Multimeter HP 8164A Lightwave Measurement System User s Guide ...
Страница 13: ...13 Safety Summary ...
Страница 25: ...1 1 Getting Started ...
Страница 40: ...40 Getting Started A Description of the User Interface Figure 1 13 The HP 8163A System Configuration Menu ...
Страница 49: ...2 2 Additional Features ...
Страница 61: ...3 3 Power Measurement ...
Страница 76: ...76 Power Measurement How to Measure Power Figure 3 8 Manual Range Mode Within Range ...
Страница 87: ...4 4 Laser Sources ...
Страница 94: ...94 Using Laser Source Modules How to Use Laser Source Modules ...
Страница 95: ...5 5 Tunable Lasers ...
Страница 99: ...99 Tunable Laser Sources How to Set the Power Figure 5 1 Setting High Power parameters ...
Страница 103: ...103 Tunable Laser Sources How to Set the Power Figure 5 3 Setting Attenuation ...
Страница 113: ...113 Tunable Laser Sources How to Perform a Wavelength Sweep Figure 5 10 Executing a Stepped Sweep ...
Страница 130: ...130 Tunable Laser Sources How to Use Auxiliary Functions ...
Страница 131: ...A A Installation and Maintenance ...
Страница 159: ...B B Accessories ...
Страница 167: ...C C Specifications ...
Страница 175: ...D D Performance Tests ...
Страница 188: ...188 Performance Tests Test Record ...
Страница 192: ...192 Performance Tests Test Record ...
Страница 193: ...E E Cleaning Procedures ...
Страница 199: ...F F Firmware Updates ...
Страница 204: ...204 F Firmware Updates Firmware Update Process ...