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周學良
周學良
Development of optical head combined with micro aperture, solid immersion lens, and optical fiber socket
Development of optical head combined with micro aperture, solid immersion lens, and optical fiber socket
結合光纖插孔、固態浸沒式透鏡與精密電鍍微孔之光學頭研究
結合光纖插孔、固態浸沒式透鏡與精密電鍍微孔之光學頭研究
The research describes the fabrication processes of an integrated optical pick-up head for near field recording that combines a tiny aperture, a smooth microlens, and a insertion socket for optical fiber.
The research describes the fabrication processes of an integrated optical pick-up head for near field recording that combines a tiny aperture, a smooth microlens, and a insertion socket for optical fiber.
Conventionally, micro apertures and microlenses in optical pick-up head are fabricated separately, and then are assembled together. Here a fabrication process without bonding to combine all the desired components on a single substrate is proposed. The cone-shape aperture is fabricated by reflow and an improved electroplating method. Then a thermal reflow process is used to form the smooth microlens made of AZP 4620 with the refractive index from 1.63 to 1.82. The diameter ranges from 50 μm to 110μm. After that, SU-8 support is fabricated to act as the insertion socket of the optical fiber and to enforce the device strength.
Conventionally, micro apertures and microlenses in optical pick-up head are fabricated separately, and then are assembled together. Here a fabrication process without bonding to combine all the desired components on a single substrate is proposed. The cone-shape aperture is fabricated by reflow and an improved electroplating method. Then a thermal reflow process is used to form the smooth microlens made of AZP 4620 with the refractive index from 1.63 to 1.82. The diameter ranges from 50 μm to 110μm. After that, SU-8 support is fabricated to act as the insertion socket of the optical fiber and to enforce the device strength.
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