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With this o

ption, the user can accomplish a shift of one FSR by applying a

tuning time

is better than 20µs.

Tuning speed for a U option DPSK demodulator

L option: Low-

voltage tuning based on a resistive heater

Phase shift is obtained using a resist

voltage changes the local temperature

With this option, the user can accomplish a shift of one FSR by applying a 2V voltage. The

tuning time is better

9 – ER attenuation option

It is possible to tune the extinction ratio of an interferometer

power is the same the ER will be the greatest. By attenuating the power in one arm, ER will be reduced.

The ER

attenuation option for MINT and WT

of one arm of the interferometer. It enables to tune the ER down to 0dB (one arm is totally shut down) with

an accuracy of 1dB.

Blo

ck diagram: DLI with ER attenuation option

optical

input

phase tuning

DPSK demodulator

MINT and WT

MINT: Delay Line Interferometers

MINT & WTMINT

ption, the user can accomplish a shift of one FSR by applying a

is better than 20µs.

Tuning speed for a U option DPSK demodulator

voltage tuning based on a resistive heater

Phase shift is obtained using a resist

ive heater fixed on an

optical element. Changing the

voltage changes the local temperature

and thus the optical index, then the optical delay.

With this option, the user can accomplish a shift of one FSR by applying a 2V voltage. The

tuning time is better

than 1s.

It is possible to tune the extinction ratio of an interferometer

by adjusting the power in both arms. When the

power is the same the ER will be the greatest. By attenuating the power in one arm, ER will be reduced.

attenuation option for MINT and WT

MINT consist of a micrometer head that can adjust the power

of one arm of the interferometer. It enables to tune the ER down to 0dB (one arm is totally shut down) with

ck diagram: DLI with ER attenuation option

phase tuning

DPSK demodulator

differential

photodetector

TIA

micrometer head

for ER attenuation

MINT: Delay Line Interferometers

ption, the user can accomplish a shift of one FSR by applying a

60V voltage. The

optical element. Changing the

and thus the optical index, then the optical delay.

With this option, the user can accomplish a shift of one FSR by applying a 2V voltage. The

by adjusting the power in both arms. When the

power is the same the ER will be the greatest. By attenuating the power in one arm, ER will be reduced.

MINT consist of a micrometer head that can adjust the power

of one arm of the interferometer. It enables to tune the ER down to 0dB (one arm is totally shut down) with

RF outputs

differential

photodetector

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