A Simple Method to Build High Power PCSEL Array with Isolation Pattern Design

Chia Jui Chang, Lih Ren Chen, Kuo Bin Hong, Wei Chih Weng, Bing Hong Chuang, Hao Chung Kuo, Tien-Chang Lu*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


Photonic crystal surface-emitting lasers (PCSELs) hold promising properties of both edge emitting lasers (EELs) and vertical-cavity surface-emitting lasers (VCSELs). They possess high output power while radiating light vertically, being thought of as the next generation laser source. One of the main advantages of PCSELs is their scalability of size and power, which makes them applicable to high power applications or long-distance detection. However, due to problems such as current injection and mode competition, there are limits on their dimensions. To further increase the power, the capability of two-dimensional array integration paves the way. In this work, we demonstrate a new method to fabricate PCSEL arrays by defining an isolation pattern. We also investigate the influence of aperture size and array arrangement on lasing performance.

Original languageEnglish
Article number1432
Issue number10
StatePublished - Oct 2022


  • array
  • high power
  • photonic crystal surface-emitting laser
  • small divergence


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