Laser Focus World is an industry bedrock—first published in 1965 and still going strong. We publish original articles about cutting-edge advances in lasers, optics, photonics, sensors, and quantum technologies, as well as test and measurement, and the shift currently underway to usher in the photonic integrated circuits, optical interconnects, and copackaged electronics and photonics to deliver the speed and efficiency essential for data centers of the future.

Our 80,000 qualified print subscribers—and 130,000 12-month engaged online audience—trust us to dive in and provide original journalism you won’t find elsewhere covering key emerging areas such as laser-driven inertial confinement fusion, lasers in space, integrated photonics, chipscale lasers, LiDAR, metasurfaces, high-energy laser weaponry, photonic crystals, and quantum computing/sensors/communications. We cover the innovations driving these markets.

Laser Focus World is part of Endeavor Business Media, a division of EndeavorB2B.

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The latest in products within the biophotonics industry. (4x per year)

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If you’d like to write an article for us, reach out with a short pitch to Sally Cole Johnson: [email protected]. We love to hear from you.

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Laser Focus World produces a video newscast that gives a peek into what’s happening in the world of photonics.

Following the Photons: A Photonics Podcast

Following the Photons: A Photonics Podcast dives deep into the fascinating world of photonics. Our weekly episodes feature interviews and discussions with industry and research experts, providing valuable perspectives on the issues, technologies, and trends shaping the photonics community.

Editorial Advisory Board

  • Professor Andrea M. Armani, University of Southern California
  • Ruti Ben-Shlomi, Ph.D., LightSolver
  • James Butler, Ph.D., Hamamatsu
  • Natalie Fardian-Melamed, Ph.D., Columbia University
  • Justin Sigley, Ph.D., AmeriCOM
  • Professor Birgit Stiller, Max Planck Institute for the Science of Light, and Leibniz University of Hannover
  • Professor Stephen Sweeney, University of Glasgow
  • Mohan Wang, Ph.D., University of Oxford
  • Professor Xuchen Wang, Harbin Engineering University
  • Professor Stefan Witte, Delft University of Technology

3 Low-Volatility Stocks We Keep Off Our Radar

PRDO Cover Image

Stability is great, but low-volatility stocks may struggle to deliver market-beating returns over time as they sometimes underperform during bull markets.

Luckily for you, StockStory helps you navigate which companies are truly worth holding. That said, here are three low-volatility stocks to avoid and some better opportunities instead.

Perdoceo Education (PRDO)

Rolling One-Year Beta: 0.63

Formerly known as Career Education Corporation, Perdoceo Education (NASDAQ: PRDO) is an educational services company that specializes in postsecondary education.

Why Are We Cautious About PRDO?

  1. Sales trends were unexciting over the last two years as its 2.9% annual growth was below the typical consumer discretionary company
  2. Eroding returns on capital suggest its historical profit centers are aging

Perdoceo Education’s stock price of $33.06 implies a valuation ratio of 21.1x forward EV-to-EBITDA. Read our free research report to see why you should think twice about including PRDO in your portfolio.

Solventum (SOLV)

Rolling One-Year Beta: 0.80

Founded in 1985, Solventum (NYSE: SOLV) develops, manufactures, and commercializes a portfolio of healthcare products and services addressing critical customer and therapeutic patient needs.

Why Are We Wary of SOLV?

  1. Organic revenue growth fell short of our benchmarks over the past two years and implies it may need to improve its products, pricing, or go-to-market strategy
  2. Efficiency has decreased over the last four years as its adjusted operating margin fell by 5.3 percentage points
  3. 15.7 percentage point decline in its free cash flow margin over the last four years reflects the company’s increased investments to defend its market position

Solventum is trading at $72.14 per share, or 12.9x forward P/E. To fully understand why you should be careful with SOLV, check out our full research report (it’s free).

AdaptHealth (AHCO)

Rolling One-Year Beta: 0.36

With a network of approximately 680 locations serving patients across all 50 states, AdaptHealth (NASDAQ: AHCO) provides home medical equipment, supplies, and related services to patients with chronic conditions like sleep apnea, diabetes, and respiratory disorders.

Why Does AHCO Give Us Pause?

  1. Sales trends were unexciting over the last two years as its 2.7% annual growth was below the typical healthcare company
  2. Performance over the past five years shows its incremental sales were less profitable as its earnings per share were flat
  3. Waning returns on capital from an already weak starting point displays the inefficacy of management’s past and current investment decisions

At $9.25 per share, AdaptHealth trades at 7.6x forward P/E. If you’re considering AHCO for your portfolio, see our FREE research report to learn more.

Stocks We Like More

Trump’s April 2025 tariff bombshell triggered a massive market selloff, but stocks have since staged an impressive recovery, leaving those who panic sold on the sidelines.

Take advantage of the rebound by checking out our Top 5 Growth Stocks for this month. This is a curated list of our High Quality stocks that have generated a market-beating return of 183% over the last five years (as of March 31st 2025).

Stocks that made our list in 2020 include now familiar names such as Nvidia (+1,545% between March 2020 and March 2025) as well as under-the-radar businesses like the once-small-cap company Comfort Systems (+782% five-year return). Find your next big winner with StockStory today for free. Find your next big winner with StockStory today. Find your next big winner with StockStory today

StockStory is growing and hiring equity analyst and marketing roles. Are you a 0 to 1 builder passionate about the markets and AI? See the open roles here.

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