Integrated organic light source devices fabricated by waveguide self-formation technique and application to on-chip optical measurements

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We have developed fabrication techniques of integrated light source devices based on the polymer waveguide. Self-written active (SWA) waveguide technique was employed for the fabrication of the light source devices. An integrated light source device showing broadband emission was realized by a cascade structure of the SWA waveguide. Furthermore, singlemode lasing device with a distributed-feedback resonator was also fabricated with two-beam interference technique. By using the integrated broadband light source device, we have demonstrated an on-chip spectroscopy of transient absorption.