• 한국가축번식학회지
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• 제22권3호
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• pp.287-292
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• 1998

본 실험은 1.48$\mu\textrm{m}$ diode laser의 인간배에 대한 적용 가능성 여부를 조사하기 위한 예비실험으로, 체외생산된 생쥐배에 1.48$\mu\textrm{m}$ diode laser를 이용한 zona pellucida (ZP) drilling 처리가 배의 부화와 체내발달에 효과적인지를 조사하고자 실시하였다. 그 결과는 다음과 같다. 발달단계가 상이한(4-세포기배, 배반포기배) 생쥐배에 laser ZP drilling 처리한 후 72시간 (배반포기배) 또는 120시간 (4-세포기배) 동안 배양하였던 바, laser ZP drilling 처리를 받은 배반포기배의 부화율(81.8%)이 대조군 (54. 2%)이나 laser ZP drilling 처리를 받은 4-세포기배 (45.5%) 보다 유의하게 높게 나타났다(p<0.05). 또한, laser ZP drilling된 배반포기배를 가임신이 유도된 대리모에 이식하였던 바, 처리군 (48.7%)의 착상율이 대조군 (43.6%)보다 약간 높게 나타났다. 한편, 임신된 대리모 일부는 분만을 유도하였던 바, 태어난 모든 새끼는 처리군에 관계없이 정상적인 염색체수 (n=40), 정상적인 성장과 생식기능을 나타내었다. 이러한 결과는 1.48$\mu\textrm{m}$ diode laser를 이용한 ZP drilling이 생쥐배의 부화를 증진시키고 정상적인 임신을 유도할 수 있어 인간배에 대한 적용 간으성을 시사한다고 하겠다.

• 대한기계학회:학술대회논문집
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• 대한기계학회 2003년도 추계학술대회
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• pp.222-227
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• 2003

Recent advances in room-temperature, visible and near-IR diode laser sources for telecommunication, optical data storage applications are enabling combustion diagnostics system based on diode laser absorption spectroscopy. In contrast to some traditional sampling-based gas-sensing instruments, tunable diode laser absorption spectroscopy system is advantageous because of their non-invasive nature, high sensitivity, fast response time and real-time measurement capability. So, combined with fiber-optics and high sensitive detection strategies, compact and portable sensor system arc now appearing for a variety of applications. The objective of this research is to take advantage of distributed feed-back diode laser and measure the $CO_{2}$ concentration (by using direct absorption and wavelength modulation spectroscopy methods). In addition to survey spectra of $CO_{2}$ bands and spectroscopic parameters between 1565 and 1579 run were computed at temperatures between 296 and 1200 K (by using HITRAN 2000 database). It experimentally found out that the features of direct absorption and wavelength modulation spectroscopy methods.

• 한국레이저가공학회지
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• 제8권3호
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• pp.21-26
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• 2005

A bonding process between tape-carrier package and a glass panel with anisotropic conductive film (ACF) has been investigated by making use of high power diode laser as a heat source for cure. The results from modeling of process and from optical properties of layers showed that heat absorbed from polyimide film surface and ACF layer is dominant source of curing during laser illumination. Laser ACF bonding has better bonding quality than conventional bonding in view of peel strength, flatness, pressure unbalance and processing time. New ACF bonding processes by making use of high power diode laser are proposed.

• Medical Lasers
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• 제9권2호
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• pp.190-193
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• 2020

A 45-year-old Korean male with laryngotracheal papilloma was treated using a 532-nm diode laser at six watts with a pulse width of 25 milliseconds. Two months after the laser treatment, the resected region was well-healed without significant scar contracture. This outcome suggests that a 532-nm diode laser can be a safe and effective treatment for laryngotracheal papilloma.

• Journal of Periodontal and Implant Science
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• 제53권5호
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• pp.376-387
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• 2023

Purpose: Peri-implantitis (PI) is an inflammatory condition associated with the destruction of bone tissue around a dental implant, and diode lasers can be used to treat this disease. In this study, we aimed to evaluate the effectiveness of a 940-nm diode laser for the nonsurgical treatment of PI. Methods: Twenty patients (8 women and 12 men) were enrolled in a split-mouth randomized controlled study. In the control group (CG), mechanical debridement with titanium curettes accompanied by airflow was performed around the implants. The test group (TG) was treated similarly, but with the use of a diode laser. Clinical measurements (plaque index, gingival index [GI], probing pocket depth [PPD], bleeding on probing [BOP], clinical attachment level, and interleukin-1β [IL-1β] in the peri-implant crevicular fluid) were evaluated and recorded at baseline and 3 months. IL-1β levels were determined using the enzyme-linked immunosorbent assay method. Results: The symptoms were alleviated in both groups at 3 months as assessed through clinical measurements. GI, BOP, and PPD were significantly lower in the TG than in the CG (P<0.05). The IL-1β level increased post-treatment in both groups, but this increase was only statistically significant (P<0.05) in the CG. Conclusions: The diode laser enabled improvements in clinical parameters in the periimplant tissue. However, it did not reduce IL-1β levels after treatment. Further studies about the use of diode lasers in the treatment of PI will be necessary to evaluate the effects of diode lasers in PI treatment.

• 전자공학회논문지T
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• 제35T권3호
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• pp.1-8
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• 1998

본 논문에서는 레이저 다이오드, 포토 다이오드, 그레이팅 렌즈, 빔 스프릿터가 반도체 공정으로 직접화된 홀로그램 레이저 다이오드와 4 와이어 부동형 엑츄에이터를 이용하여, 시장성이 풍부한 일반 오디오용 광학 픽업을 설계하였다. 또한, 이러한 홀로그램 레이저 다이오드의 특성을 이용하여 초간편 광학계를 구현하므로서, 기존외 제품 대비 조립성과 생산성을 향상시키고, 취부 부품의 수를 줄이고 형상을 단순화하였다.

• 한국광학회지
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• 제21권6호
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• pp.254-258
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• 2010

타원형 모양의 모드 형태를 갖는 펄스형 레이저 다이오드 (laser diode)의 펄스 형태를 유지하면서 단일 모드 및 Gaussian 형태로 광 모드 변환을 유도하고 광출력을 증폭할 수 있는 기술에 대해서 연구하였다. 실험에서 사용한 펼스형 레이저 다이오드의 구경이 가로는 $300{\mu}m$이며, 세로는 $2{\mu}m$이고 출력은 $1.1mW/cm^2$이다. 렌즈형 광섬유를 사용하여 광결합을 유도하여 단일 모드 및 Gaussian 형태의 출력으로 변환시켰다. 그러나, 다중모드의 펄스형 레이저 다이오드의 출력을 단일모드 렌즈형 광섬유에 결합시키면 출력이 급격하게 감소한다. 따라서 master oscillator power amplifier (MOPA) 기반의 광증폭 기술을 이용하여 레이저 다이오드의 광출력을 증폭시켰다. 증폭 후에도 펄스 성질은 그대로 유지되었고, MOPA구조를 지나 증폭된 광 출력은 $29mW/cm^2$로 측정되었다.

• 한국레이저가공학회:학술대회논문집
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• 한국레이저가공학회 1998년도 추계학술발표대회 초록개요집
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• pp.56-59
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• 1998

• 한국전기전자재료학회:학술대회논문집
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• 한국전기전자재료학회 2007년도 하계학술대회 논문집 Vol.8
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• pp.496-496
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• 2007

Low level laser therapy has various therapy effects. This paper performed the basic study for fabricating the low level laser therapy apparatus, and one of the goals of this paper was to make this apparatus used handily. The apparatus has been fabricated using the laser diode and microprocessor unit. The apparatus used a 7850m Laser diode for blood stream improvement and was designed for a pulse width modulation type to increase stimulation effects. In result, we could get the light power of 785nm wavelength.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2005년도 추계학술대회 논문집
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• pp.423-426
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• 2005

A new chip on glass(COG) technique by making use of a high power diode laser for LCD driver IC packaging of LCD has been developed. A laser joining technology of the connection of IC chip to glass panel has several advantages over conventional method such as hot plate joining: shorter process time, high reliability of joining, and better fur fine pitch joining. The reach time to cure temperature of ACF in laser joining is within 1 second. In this study, results show that the total process time of joining is reduced by halves than that of conventional method. The adhesion strength is mainly 100-250 N/cm. It is confirmed that the COG technology using high power diode laser joining can be applied to advanced LCDs with a fine pitch.