| 1. |
- Haglund, Emanuel, 1988, et al.
(author)
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20-Gb/s Modulation of Silicon-Integrated Short-Wavelength Hybrid-Cavity VCSELs
- 2016
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In: IEEE Photonics Technology Letters. - 1041-1135 .- 1941-0174. ; 28:8, s. 856 - 859
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Journal article (peer-reviewed)abstract
- We investigate the dynamics of silicon-integrated 850-nm-wavelength hybrid-cavity vertical-cavity surface-emitting lasers (VCSELs). The VCSELs consist of a GaAs-based half-VCSEL attached to a dielectric distributed Bragg reflector on a silicon substrate using ultra-thin divinylsiloxane-bis-benzocyclobutene adhesive bonding. A 5-µm oxide aperture diameter VCSEL, with a small signal modulation bandwidth of 11 GHz, supports data transmission at bit rates up to 20 Gb/s. The modulation bandwidth and the large signal modulation characteristics are found to be impaired by the high thermal impedance.
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| 2. |
- Haglund, Emanuel, 1988, et al.
(author)
-
Dynamic properties of silicon-integrated short-wavelength hybrid-cavity VCSEL
- 2016
-
In: Proceedings of SPIE - The International Society for Optical Engineering. - : SPIE. - 0277-786X .- 1996-756X. - 9781510600010 ; 9766
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Conference paper (peer-reviewed)abstract
- We present a vertical-cavity surface-emitting laser (VCSEL) where a GaAs-based “half-VCSEL” is attached to a dielectric distributed Bragg reflector on silicon using ultra-thin divinylsiloxane-bis-benzocyclobutene (DVS-BCB) adhesive bonding, creating a hybrid cavity where the optical field extends over both the GaAs- and the Si-based parts of the cavity. A VCSEL with an oxide aperture diameter of 5 μm and a threshold current of 0.4 mA provides 0.6 mW output power at 845 nm. The VCSEL exhibits a modulation bandwidth of 11 GHz and can transmit data up to 20 Gbps.
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| 3. |
- Haglund, Emanuel, 1988, et al.
(author)
-
Impact of Bonding Interface Thickness on the Performance of Silicon-Integrated Hybrid-Cavity VCSELs
- 2016
-
In: Conference Digest - IEEE International Semiconductor Laser Conference. - 0899-9406. - 9784885523069 ; , s. Article no 7765752-
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Conference paper (peer-reviewed)abstract
- The dependence of the performance of short-wavelength silicon-integrated hybrid-cavity VCSELs on the thickness of the bonding interface used for the heterogeneous integration has been studied. Performance measures investigated include the emission wavelength, thermal impedance, and variation of threshold current and output power with temperature.
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