| Original Articles |
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Monolithically Integrated Transceiver with Novel Y-Branch by Bundle Integrated Waveguide for Fibre Optic Gyroscope |
WANG Lu;LIAO Zai-Yi;CHENG Yuan-Bing;ZHAO Ling-Juan;PAN Jiao-Qing,
ZHOU Fan;WANG Wei |
| 1State Key Laboratory on Integrated Optoelectronics, Institute of Semiconductors, Chinese Academy of Sciences, PO Box 912, Beijing 1000832Key Laboratory of Semiconductors Materials, Institute of Semiconductors, Chinese Academy of Sciences, PO Box 912, Beijing 100083 |
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| Cite this article: |
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WANG Lu, LIAO Zai-Yi, CHENG Yuan-Bing et al 2007 Chin. Phys. Lett. 24 3424-3427 |
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Abstract A novel Y-branch based monolithic transceiver with a superluminescent diode and a waveguide photodiode (Y-SDL-PD) is designed and fabricated by the method of bundle integrated waveguide (BIG) as the scheme for monolithic integration and angled Y-branch as the passive bi-directional waveguide. The simulations of BIG and Y-branches show low losses and improved far-field patterns, based on the beam propagation method (BPM). The amplified spontaneous emission of the device is up to 10mW at 120mA with no threshold and saturation. Spectral characteristics of about 30nm width and less than 1dB modulation are achieved using the built-in anti-lasing ability of
Y-branch. The beam divergence angles in horizontal and vertical directions are optimized to as small as 12°× 8°, resulting in good fibre coupling.
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| Keywords:
42.55.Px
42.70.Hj
42.60.Jf
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Received: 03 September 2007
Published: 03 December 2007
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| PACS: |
42.55.Px
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(Semiconductor lasers; laser diodes)
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42.70.Hj
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(Laser materials)
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42.60.Jf
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(Beam characteristics: profile, intensity, and power; spatial pattern formation)
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