![Amiet R. Kashyap on X: "Btw DRDO's SSPL has also developed a Blue Laser Diode based submarine communication sys. It uses Blue GaN laser diode directly modulated by pre-leveled 16-QAM(quad) orthogonal frequency Amiet R. Kashyap on X: "Btw DRDO's SSPL has also developed a Blue Laser Diode based submarine communication sys. It uses Blue GaN laser diode directly modulated by pre-leveled 16-QAM(quad) orthogonal frequency](https://pbs.twimg.com/media/Ec4pP66UMAEM-Ww.png)
Amiet R. Kashyap on X: "Btw DRDO's SSPL has also developed a Blue Laser Diode based submarine communication sys. It uses Blue GaN laser diode directly modulated by pre-leveled 16-QAM(quad) orthogonal frequency
![US Navy is arming attack submarines with 'high-energy LASERS' that can zap enemies 'at the speed of light' | The Sun US Navy is arming attack submarines with 'high-energy LASERS' that can zap enemies 'at the speed of light' | The Sun](https://www.thesun.co.uk/wp-content/uploads/2020/02/VP-GRAPHIC-US-NAVY-LASER-COMP.jpg?strip=all&quality=100&w=1080&h=1000&crop=1)
US Navy is arming attack submarines with 'high-energy LASERS' that can zap enemies 'at the speed of light' | The Sun
![US Navy is arming attack submarines with 'high-energy LASERS' that can zap enemies 'at the speed of light' | The US Sun US Navy is arming attack submarines with 'high-energy LASERS' that can zap enemies 'at the speed of light' | The US Sun](https://www.thesun.co.uk/wp-content/uploads/2020/02/VP-GRAPHIC-US-NAVY-LASER-v2.jpg)
US Navy is arming attack submarines with 'high-energy LASERS' that can zap enemies 'at the speed of light' | The US Sun
![US Navy is arming attack submarines with 'high-energy LASERS' that can zap enemies 'at the speed of light' | The US Sun US Navy is arming attack submarines with 'high-energy LASERS' that can zap enemies 'at the speed of light' | The US Sun](https://www.the-sun.com/wp-content/uploads/sites/6/2020/02/VP-GRAPHIC-US-NAVY-LASER-COMP-1.jpg?strip=all&quality=100&w=1500&h=1000&crop=1)
US Navy is arming attack submarines with 'high-energy LASERS' that can zap enemies 'at the speed of light' | The US Sun
![An artist's concept of a Submarine Laser Communications (SLC) system - PICRYL - Public Domain Media Search Engine Public Domain Search An artist's concept of a Submarine Laser Communications (SLC) system - PICRYL - Public Domain Media Search Engine Public Domain Search](https://cdn10.picryl.com/photo/1984/10/18/an-artists-concept-of-a-submarine-laser-communications-slc-system-652bcc-1024.jpg)