EC ENGR 170B · EE 170BLasers and Photonic Devices
Electrical and Computer Engineering · 4 units · Undergraduate upper division (100-199)
Coverage of laser physics, related photonic devices, and applications of lasers. Topics include resonators, thermal radiation, Einstein coefficients, optical amplification, semiconductor lasers, optical modulation and detection.
Letter grading.
When it runs
- Spring 2026
Scheduled, not typical — from UCLA’s Schedule of Classes, which publishes Fall 2025 through Spring 2027 and nothing before it.
Requisites
Official UCLA wording
Enforced requisite: course 170A.
BruinTree reads · Prerequisite
confidence 1.00 · from textRequires
Everything that has to come before this course, not just the courses named in the requisite above.
EC ENGR 170B
- EC ENGR 170APrinciples of Photonics
- EC ENGR 2Physics for Electrical Engineers
- PHYSICS 1CPhysics for Scientists and Engineers: Electrodynamics, Optics, and Special Relativity2 more beneath
- EC ENGR 101AEngineering Electromagnetics
- PHYSICS 1CPhysics for Scientists and Engineers: Electrodynamics, Optics, and Special Relativityanother path to it
1 direct requisite. Showing 9 courses over 3 levels; the branches marked with a count carry on past it. Every course here opens its own tree.
Unlocks
What this course is a requisite for, and what those courses lead to in turn.
EC ENGR 170B
- EC ENGR 274Optical Communication and Sensing Design
1 course lists this as a requisite. The whole downstream is here — 1 course over 1 level. Every course here opens its own tree.