Last Updated: August 16, 2025
1 min read
133
What is a 30 dB gain means???
Puzzled..Earlier I use to be the same but its really simple to understand.It means:-
For every input PHOTON there will be 1000 PHOTON’s at output. That’s what Gain is..
X dB is 10x/10
You can verify the same with above formula…Make things Simpler.
Optical Communications & Network Automation Expert | Author of 3 Books for Optical Engineers | Founder, MapYourTech
Optical networking engineer with nearly two decades of experience across DWDM, OTN, coherent optics, submarine systems, and cloud infrastructure. Founder of MapYourTech. Read full bio →
Follow on LinkedInRelated Articles on MapYourTech
Coherent Optics · Jul 10, 2026
The Submarine Cable Stack: Open Cables, Generalized OSNR, SDM and Power-Constrained Transmission
Coherent Optics · Jul 10, 2026
Coherent DSP Architecture: From ADC Samples to Client Bits
Automation · Jul 10, 2026
Building an Optical NOC Dashboard with OpenConfig Telemetry
Coherent Optics · Jul 10, 2026
Spectral Efficiency in Practice: The Four Levers