| 21. | The combination of GMA-welding and a diode laser leads to a cheap and energy efficient process.
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| 22. | For practical use, it would be necessary to demonstrate diode laser action, continuous-wave, at room temperature.
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| 23. | The first heterojunction diode lasers were single-heterojunction lasers.
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| 24. | The first diode lasers were homojunction diodes.
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| 25. | A specific type of laser called the semiconductor diode laser is used to read an optical disc.
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| 26. | Single spatial mode diode lasers can be designed so as to operate on a single longitudinal mode.
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| 27. | In the very early 1990s, SDL, Inc . began supplying high power diode lasers with good reliability characteristics.
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| 28. | This procedure enforces diode lasers are the two most important types of lasers where active mode-locking are applied.
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| 29. | In comparison, diode lasers can only reach a few hundred milliwatts unless they operate in multiple transverse mode.
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| 30. | The asphere's more complex surface profile can reduce or eliminate spherical aberration and also reduce other collimating diode lasers.
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