Abstract
A 96-channel (50 GHz-spacing) athermal AWG has been developed. It has a wide operating range due to reduced temperature dependence than conventional AWG. The temperature dependence of the center wavelength of the developed module satisfied the ±0.05 nm range in all channels in the temperature range of −40 °C to 85 °C, and the insertion loss variation was also less than ±0.5 dB. As a result of validating its reliability through tests based on Telcordia-GR-1209 and GR-1221, the temperature dependence of the center wavelength satisfied the ±0.022 nm range, and the insertion loss variation was also less than ±0.2 dB. Accelerated life testing showed an expected service life of over 36.7 years, ensuring long-term safety of communication quality in harsh indoor and outdoor environments.
Highlights
Based on Telcordia GR-1221-CORE [19] and Telcordia-GR-1209-CORE [20] for pasdistance of the temperature compensation board becomes 48.55 mm, according to the sive optical components, reliability tests were performed on athermal arrayed waveguide grating (AWG) modules undesign of AWG
Based on Telcordia GR-1221-CORE [19] and Telcordia-GR-1209-CORE [20] for passive optical components, reliability tests were performed on athermal AWG modules unBased on Telcordia GR-1221-CORE [19] and Telcordia-GR-1209-CORE [20] for passive der the conditions in Table 2 to measure the performance characteristics before and after optical components, reliability tests were performed on athermal AWG modules under the the test at room temperature
The dependenceThe of the center wavelength in the by GHzspacing) athermal AWG module developed based on a new temperature compensation board shape and patent satisfied the ±0.05 nm range in all channels in the temperature range of −40 ◦ C~85 ◦ C, and the insertion loss variation was less than ±0.5 dB
Summary
The center wavelength of the output end of an AWG wavelength division multiplexing device fabricated with conventional silica-based PLC (planar lightwave circuits) technologies has a temperature dependence of about 0.011 nm/◦ C [10,16], which causes crosstalk between channels, so the temperature of the device needs to be stabilized when applied to DWDM. WhenWhen a WDM signalsignal containing multiple optical signals with multiplexer operates as follows. A WDM containing multiple optical signals wavelengths λ1~λn enters input it is diffracted and diffused by the by input with wavelengths λ1 ~λn the enters thewaveguides, input waveguides, it is diffracted and diffused the slab waveguide and transmitted to the arrayed waveguide.
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