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Course information comes from the public UCLA General Catalog. Requisites are read from UCLA’s published wording and can be incomplete or out of date — check the official catalog listing and your department adviser before you enroll.

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EC ENGR 170A · EE 170APrinciples of Photonics

Electrical and Computer Engineering · 4 units · Undergraduate upper division (100-199)

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Development of solid foundation on essential principles of photonics from ground up with minimum prior knowledge on this subject. Topics include optical properties of materials, optical wave propagation and modes, optical interferometers and resonators, optical coupling and modulation, optical absorption and emission, principles of lasers and light-emitting diodes, and optical detection.

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Requisites

Official UCLA wording

Enforced requisites: courses 2, 101A.

BruinTree reads · Prerequisite

confidence 1.00 · from text
all of
  • EC ENGR 2
  • EC ENGR 101A

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Requires

Everything that has to come before this course, not just the courses named in the requisite above.

EC ENGR 170A

  • EC ENGR 2Physics for Electrical Engineers
    • PHYSICS 1CPhysics for Scientists and Engineers: Electrodynamics, Optics, and Special Relativity
      • MATH 32ACalculus of Several Variablesanother path to it
      • PHYSICS 1APhysics for Scientists and Engineers: Mechanics
      • MATH 32BCalculus of Several Variablesanother path to it
      • PHYSICS 1BPhysics for Scientists and Engineers: Oscillations, Waves, Electric and Magnetic Fields
      • MATH 33ALinear Algebra and Applicationsanother path to it
  • EC ENGR 101AEngineering Electromagnetics
    • MATH 32ACalculus of Several Variables
      • MATH 31ADifferential and Integral Calculus1 more beneath
    • PHYSICS 1CPhysics for Scientists and Engineers: Electrodynamics, Optics, and Special Relativityanother path to it
    • MATH 32BCalculus of Several Variables
      • MATH 31BIntegration and Infinite Series
      • MATH 32ACalculus of Several Variablesanother path to it
    • MATH 33ALinear Algebra and Applications
      • MATH 3BCalculus for Life Sciences Students1 more beneath
      • MATH 31BIntegration and Infinite Seriesanother path to it
      • MATH 32ACalculus of Several Variablesanother path to it
    • MATH 33BDifferential Equations
      • MATH 31BIntegration and Infinite Seriesanother path to it

2 direct requisites. Showing 20 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 170A

  • EC ENGR 170BLasers and Photonic Devices
    • EC ENGR 274Optical Communication and Sensing Designanother path to it
  • EC ENGR 271Classical Laser Theory
    • EC ENGR 272Dynamics of Lasers
  • EC ENGR 273Nonlinear Photonics
  • EC ENGR 274Optical Communication and Sensing Design

4 courses list this as a requisite. The whole downstream is here — 6 courses over 2 levels. Every course here opens its own tree.

  • Fall 2025
  • Winter 2026
  • Fall 2026
  • Winter 2027

Scheduled, not typical — from UCLA’s Schedule of Classes, which publishes Fall 2025 through Spring 2027 and nothing before it.