 TORONTO, June 08, 2021 GLOBE NEWSWIRE -- POET Technologies Inc. POET or the Company TSX Venture: PTK; OTCQX: POETF, the designer and developer of integrated optical engines for the optical communications, computing and sensing markets, all based on the POET Optical InterposerTM, announces that samples of its 100G and 200G CWDM4 Optical Engines will be available beginning in early July. 