New design for low-loss star couplers and arrayed waveguide grating devices Park, Joonoh ; Chung, Youngchul ; Baek, Soohyun ; Lee, Hyung-Jong Abstract Publication: IEEE Photonics Technology Letters Pub Date: May 2002 DOI: 10.1109/68.998714 Bibcode: 2002IPTL...14..651P