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Broadband radiofrequency design of a laser diode bias circuit (CROSBI ID 648604)

Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija

Štimac, Hrvoje ; Gillon, Renaud ; Barić, Adrijan Broadband radiofrequency design of a laser diode bias circuit // ICECom 2016 Conference Proceedings / Bonefačić, Davor ; Šipuš, Zvonimir (ur.). Zagreb, 2016. str. 1-6 doi: 10.1109/ICECom.2016.7843907

Podaci o odgovornosti

Štimac, Hrvoje ; Gillon, Renaud ; Barić, Adrijan

engleski

Broadband radiofrequency design of a laser diode bias circuit

Laser diodes are used in broadband communications including the radiofrequency range. Broadband design of a laser diode bias circuit is presented. The biasing circuit must have a high input impedance for radiofrequency signals, in order to prevent them from entering the DC power supply. The desired frequency bandwidth of the biasing circuit is up to 5 GHz. In this paper, two different biasing circuit designs are explored. Each design is simulated and optimized using electromagnetic simulation software. Based on the simulations, a series of printed circuit boards are designed and measured. It is shown that the power supply input impedance has a very small effect on the bias circuit input impedance value at high frequencies. Decreasing the resistor solder pad size and adding a slot in the ground plane achieves a significant increase in the input impedance value at high frequencies. It is shown that the new bias circuit design has a significantly higher differential impedance in the whole measurement bandwidth, and especially at high frequencies.

laser diode, biasing, electromagnetic simulations, measurement, differential impedance, microstrip

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Podaci o prilogu

1-6.

2016.

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objavljeno

10.1109/ICECom.2016.7843907

Podaci o matičnoj publikaciji

ICECom 2016 Conference Proceedings

Bonefačić, Davor ; Šipuš, Zvonimir

Zagreb:

Podaci o skupu

22nd International Conference on Applied Electromagnetics and Communications (ICECom 2016)

predavanje

19.09.2016-21.09.2016

Dubrovnik, Hrvatska

Povezanost rada

Elektrotehnika

Poveznice