Demonstration and optimization of an optoelectronic phase-locked phase shifted for optical microwave signals
Journal
IEEE Photonics Technology Letters
Journal Volume
12
Journal Issue
11
Pages
1555-1557
Date Issued
2000
Author(s)
Abstract
We demonstrate the tracking and continuous tuning of the relative phase difference between the free-running microwave clock and the optically distributed microwave signals from laser diode by using a modified optoelectronic phase shifter (OEPS). This is implemented by using a voltage-controlled optoelectronic digital phase-locked loop. The maximum phase deviation is up to 340/spl deg/ under the change in controlling voltage of 4.8 V, which is completely independent of operating frequency. A linear transferred function of the OEPS with responsivity of 69/spl deg//V was measured. The resolution and phase fluctuation of the OEPS can he as small as 0.2/spl deg/ and 0.05/spl deg/, respectively.
SDGs
Type
journal article