What was the revenue growth rate for the 3D Sensing business in the 2020-Q4 quarter 
panies like II-VI that are vertically integrated and have a compelling technology and product road map resulting from innovation at all levels of the transceiver design.
Innovation in optical and electronics components technology, along with advanced packaging and assembly automation that enable new levels of performance and integration will become essential as the industry migrates to higher data rates in shrinking form factors. For example, we have been investing in the high-performance indium phosphide and gallium arsenide devices, including 100G data convexes, which enable 400-gigabit Internet transceivers for different reaches. Led by our CTO, Chris Koeppen, we have stepped up our investments in wafer-level integration platforms, including silicon photonics and have significantly increased our investment in integrated circuit technology, which we believe is critical to our road map and competitiveness. In telecom, we are seeing the strong customer demand for our 25G tunable transceivers for the 5G wireless front haul.
And for our laser solutions, which grew 38% quarter-over-quarter, driven primarily by strong growth implant laser and our Wavelength Selective Switch product lines. For OEMs and module integrators, we are also ramping production of our components for 400G coherent optics, including our highly integrated tunable transmitter receiver assembly. Looking beyond the communications market, our aerospace and defense business grew over 20% in FY '20 for the full year. Aerospace and defense is increasingly turning into a significant growth market for us.
In addition to our long-standing contribution to the F-35 aircraft and other strategic platforms that support vital intelligence, surveillance, reconnaissance and targeting applications, we are further positioning II-VI to address exciting new opportunities in hypersonics and directed energy as well as satellites and contested space.mOur 3D Sensing business, once again, grew sequentially and in a seasonally low quarter. This month, we began our fourth year of volume shipments in this important supply chain that started with our first shipments from our Warren plants. We have also accelerated the pace of development of our next-generation devices to increase our by shortening our time-to-market even further. The emergence of world-facing LiDAR sensors so smartphones and tablets underlines the strategic importance of 3D Sensing.
We believe that world-facing LiDAR sensors will enable several applications, driving demand for 3D Sensing functionality in multiple end markets. We also believe it will increase the dollar content per device, it will be one of the growth drivers for 3D Sensing this year. We continue to be part of key next-generation 3D Sensing design engagements and are in a position to supply VCSEL products from our entirely U.S.-based vertical integrated facilities. We expect to continue to grow our VCSEL business and to gain market share in the upcoming product cycle by leveraging our state-of-the-art manufacturing operations in Sherman, which were qualified last quarter and where production continues to ramp.
Finally, as it relates to our announcement yesterday, I reflect on our strategy and demonstrated ability to identify and execute on valuable long-term investments. We saw the INNOViON opportunity and the importance of ionic implantations years ago. We made our original investment in INNOViON in fiscal year 2018. Yesterday, we announced our plans to acquire all the outstanding interest of the owners of the parent of INNOViON.
Along with our team and global footprint, INNOViON will make a great addition to our differentiated technology platforms. We similarly see significant long-term value and differentiation in Ascatron's silicon carbide epitaxy and device technology, and we're excited for them to become an integral part of II-VI too. With that, let me turn it over to Mary Jane. Mary Jane?
Mary Jane Raymond -- Chief Financial Officer
Thanks, Giovanni, and good morning. We closed our year with a strong performance that demonstrates our experience 
panies like II-VI that are vertically integrated and have a compelling technology and product road map resulting from innovation at all levels of the transceiver design.
Innovation in optical and electronics components technology, along with advanced packaging and assembly automation that enable new levels of performance and integration will become essential as the industry migrates to higher data rates in shrinking form factors. For example, we have been investing in the high-performance indium phosphide and gallium arsenide devices, including 100G data convexes, which enable 400-gigabit Internet transceivers for different reaches. Led by our CTO, Chris Koeppen, we have stepped up our investments in wafer-level integration platforms, including silicon photonics and have significantly increased our investment in integrated circuit technology, which we believe is critical to our road map and competitiveness. In telecom, we are seeing the strong customer demand for our 25G tunable transceivers for the 5G wireless front haul.
And for our laser solutions, which grew 38% quarter-over-quarter, driven primarily by strong growth implant laser and our Wavelength Selective Switch product lines. For OEMs and module integrators, we are also ramping production of our components for 400G coherent optics, including our highly integrated tunable transmitter receiver assembly. Looking beyond the communications market, our aerospace and defense business grew over 20% in FY '20 for the full year. Aerospace and defense is increasingly turning into a significant growth market for us.
In addition to our long-standing contribution to the F-35 aircraft and other strategic platforms that support vital intelligence, surveillance, reconnaissance and targeting applications, we are further positioning II-VI to address exciting new opportunities in hypersonics and directed energy as well as satellites and contested space.mOur 3D Sensing business, once again, grew sequentially and in a seasonally low quarter. This month, we began our fourth year of volume shipments in this important supply chain that started with our first shipments from our Warren plants. We have also accelerated the pace of development of our next-generation devices to increase our by shortening our time-to-market even further. The emergence of world-facing LiDAR sensors so smartphones and tablets underlines the strategic importance of 3D Sensing.
 We believe that world-facing LiDAR sensors will enable several applications, driving demand for 3D Sensing functionality in multiple end markets. We also believe it will increase the dollar content per device, it will be one of the growth drivers for 3D Sensing this year. We continue to be part of key next-generation 3D Sensing design engagements and are in a position to supply VCSEL products from our entirely U.S.-based vertical integrated facilities. We expect to continue to grow our VCSEL business and to gain market share in the upcoming product cycle by leveraging our state-of-the-art manufacturing operations in Sherman, which were qualified last quarter and where production continues to ramp.
Finally, as it relates to our announcement yesterday, I reflect on our strategy and demonstrated ability to identify and execute on valuable long-term investments. We saw the INNOViON opportunity and the importance of ionic implantations years ago. We made our original investment in INNOViON in fiscal year 2018. Yesterday, we announced our plans to acquire all the outstanding interest of the owners of the parent of INNOViON.
Along with our team and global footprint, INNOViON will make a great addition to our differentiated technology platforms. We similarly see significant long-term value and differentiation in Ascatron's silicon carbide epitaxy and device technology, and we're excited for them to become an integral part of II-VI too. With that, let me turn it over to Mary Jane. Mary Jane?
Mary Jane Raymond -- Chief Financial Officer
Thanks, Giovanni, and good morning. We closed our year with a strong performance that demonstrates our experience 